Doc update: client javadoc fix for @value.

Change-Id: I9e1327a21d0755fc10b4e5cb4aa9ecd30053b6ef
diff --git a/docs/html/guide/google/gcm/adv.jd b/docs/html/guide/google/gcm/adv.jd
index 5cb433f..2174128 100644
--- a/docs/html/guide/google/gcm/adv.jd
+++ b/docs/html/guide/google/gcm/adv.jd
@@ -175,7 +175,8 @@
   <li>The end user uninstalls the application.</li>
   <li>The 3rd-party server sends a message to GCM server.</li>
   <li>The GCM server sends the message to the device.</li>
-  <li>The GCM client receives the message and queries Package Manager, which returns a &quot;package not found&quot; error.</li>
+  <li>The GCM client receives the message and queries Package Manager about whether there are broadcast receivers configured to receive it, which returns <code>false</code>.
+</li>
   <li>The GCM client informs the GCM server that the application was uninstalled.</li>
   <li>The GCM server marks the registration ID for deletion.</li>
   <li>The 3rd-party server sends a message to  GCM.</li>
diff --git a/docs/html/guide/google/gcm/client-javadoc/allclasses-frame.html b/docs/html/guide/google/gcm/client-javadoc/allclasses-frame.html
index 26916d5..e1bed36 100644
--- a/docs/html/guide/google/gcm/client-javadoc/allclasses-frame.html
+++ b/docs/html/guide/google/gcm/client-javadoc/allclasses-frame.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 All Classes
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/allclasses-noframe.html b/docs/html/guide/google/gcm/client-javadoc/allclasses-noframe.html
index 6ae9fe0..dc34021 100644
--- a/docs/html/guide/google/gcm/client-javadoc/allclasses-noframe.html
+++ b/docs/html/guide/google/gcm/client-javadoc/allclasses-noframe.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 All Classes
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBaseIntentService.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBaseIntentService.html
index eed1aea..ff15218 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBaseIntentService.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBaseIntentService.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:36 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 GCMBaseIntentService
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBroadcastReceiver.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBroadcastReceiver.html
index 2a1c676..ae80bf7 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBroadcastReceiver.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMBroadcastReceiver.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:36 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 GCMBroadcastReceiver
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMConstants.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMConstants.html
index f778f06..205bcf0 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMConstants.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMConstants.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:36 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 GCMConstants
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
@@ -177,8 +177,8 @@
 <TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_APPLICATION_PENDING_INTENT">EXTRA_APPLICATION_PENDING_INTENT</A></B></CODE>
 
 <BR>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION"><CODE>INTENT_TO_GCM_REGISTRATION</CODE></A> to get the application
- id.</TD>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION">"com.google.android.c2dm.intent.REGISTER"</A> to get the
+ application info.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
@@ -186,16 +186,25 @@
 <TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_ERROR">EXTRA_ERROR</A></B></CODE>
 
 <BR>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  an error when the registration fails.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
 <CODE>static&nbsp;java.lang.String</CODE></FONT></TD>
+<TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_FROM">EXTRA_FROM</A></B></CODE>
+
+<BR>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A> to indicate which
+ sender (Google API project id) sent the message.</TD>
+</TR>
+<TR BGCOLOR="white" CLASS="TableRowColor">
+<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
+<CODE>static&nbsp;java.lang.String</CODE></FONT></TD>
 <TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_REGISTRATION_ID">EXTRA_REGISTRATION_ID</A></B></CODE>
 
 <BR>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  the registration id when the registration succeeds.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
@@ -204,8 +213,8 @@
 <TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_SENDER">EXTRA_SENDER</A></B></CODE>
 
 <BR>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION"><CODE>INTENT_TO_GCM_REGISTRATION</CODE></A> to indicate the sender
- account (a Google email) that owns the application.</TD>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION">"com.google.android.c2dm.intent.REGISTER"</A> to indicate which
+ senders (Google API project ids) can send messages to the application.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
@@ -213,7 +222,7 @@
 <TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_SPECIAL_MESSAGE">EXTRA_SPECIAL_MESSAGE</A></B></CODE>
 
 <BR>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Type of message present in the <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE"><CODE>INTENT_FROM_GCM_MESSAGE</CODE></A> intent.</TD>
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Type of message present in the <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A> intent.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
 <TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
@@ -229,7 +238,7 @@
 <TD><CODE><B><A HREF="../../../../com/google/android/gcm/GCMConstants.html#EXTRA_UNREGISTERED">EXTRA_UNREGISTERED</A></B></CODE>
 
 <BR>
-&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  that the application has been unregistered.</TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
@@ -388,8 +397,8 @@
 <PRE>
 public static final java.lang.String <B>EXTRA_SENDER</B></PRE>
 <DL>
-<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION"><CODE>INTENT_TO_GCM_REGISTRATION</CODE></A> to indicate the sender
- account (a Google email) that owns the application.
+<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION">"com.google.android.c2dm.intent.REGISTER"</A> to indicate which
+ senders (Google API project ids) can send messages to the application.
 <P>
 <DL>
 <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.google.android.gcm.GCMConstants.EXTRA_SENDER">Constant Field Values</A></DL>
@@ -401,8 +410,8 @@
 <PRE>
 public static final java.lang.String <B>EXTRA_APPLICATION_PENDING_INTENT</B></PRE>
 <DL>
-<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION"><CODE>INTENT_TO_GCM_REGISTRATION</CODE></A> to get the application
- id.
+<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION">"com.google.android.c2dm.intent.REGISTER"</A> to get the
+ application info.
 <P>
 <DL>
 <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.google.android.gcm.GCMConstants.EXTRA_APPLICATION_PENDING_INTENT">Constant Field Values</A></DL>
@@ -414,7 +423,7 @@
 <PRE>
 public static final java.lang.String <B>EXTRA_UNREGISTERED</B></PRE>
 <DL>
-<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  that the application has been unregistered.
 <P>
 <DL>
@@ -427,7 +436,7 @@
 <PRE>
 public static final java.lang.String <B>EXTRA_ERROR</B></PRE>
 <DL>
-<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  an error when the registration fails. See constants starting with ERROR_
  for possible values.
 <P>
@@ -441,7 +450,7 @@
 <PRE>
 public static final java.lang.String <B>EXTRA_REGISTRATION_ID</B></PRE>
 <DL>
-<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  the registration id when the registration succeeds.
 <P>
 <DL>
@@ -454,7 +463,7 @@
 <PRE>
 public static final java.lang.String <B>EXTRA_SPECIAL_MESSAGE</B></PRE>
 <DL>
-<DD>Type of message present in the <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE"><CODE>INTENT_FROM_GCM_MESSAGE</CODE></A> intent.
+<DD>Type of message present in the <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A> intent.
  This extra is only set for special messages sent from GCM, not for
  messages originated from the application.
 <P>
@@ -482,13 +491,26 @@
 <DL>
 <DD>Number of messages deleted by the server because the device was idle.
  Present only on messages of special type
- <A HREF="../../../../com/google/android/gcm/GCMConstants.html#VALUE_DELETED_MESSAGES"><CODE>VALUE_DELETED_MESSAGES</CODE></A>
+ <A HREF="../../../../com/google/android/gcm/GCMConstants.html#VALUE_DELETED_MESSAGES">"deleted_messages"</A>
 <P>
 <DL>
 <DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.google.android.gcm.GCMConstants.EXTRA_TOTAL_DELETED">Constant Field Values</A></DL>
 </DL>
 <HR>
 
+<A NAME="EXTRA_FROM"><!-- --></A><H3>
+EXTRA_FROM</H3>
+<PRE>
+public static final java.lang.String <B>EXTRA_FROM</B></PRE>
+<DL>
+<DD>Extra used on <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A> to indicate which
+ sender (Google API project id) sent the message.
+<P>
+<DL>
+<DT><B>See Also:</B><DD><A HREF="../../../../constant-values.html#com.google.android.gcm.GCMConstants.EXTRA_FROM">Constant Field Values</A></DL>
+</DL>
+<HR>
+
 <A NAME="PERMISSION_GCM_INTENTS"><!-- --></A><H3>
 PERMISSION_GCM_INTENTS</H3>
 <PRE>
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMRegistrar.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMRegistrar.html
index bb486ff..c29bf90 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMRegistrar.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/GCMRegistrar.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:36 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 GCMRegistrar
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
@@ -308,11 +308,12 @@
     <li>It defines at least one <CODE>BroadcastReceiver</CODE> with category
       <code>PACKAGE_NAME</code>.
     <li>The <CODE>BroadcastReceiver</CODE>(s) uses the
-       permission.
-    <li>The <CODE>BroadcastReceiver</CODE>(s) handles the 3 GCM intents
-      (,
-      ,
-      and ).
+      <A HREF="../../../../com/google/android/gcm/GCMConstants.html#PERMISSION_GCM_INTENTS">"com.google.android.c2dm.permission.SEND"</A>
+      permission.
+    <li>The <CODE>BroadcastReceiver</CODE>(s) handles the 2 GCM intents
+      (<A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A>
+      and
+      <A HREF="../../../../com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A>).
  </ol>
  ...where <code>PACKAGE_NAME</code> is the application package.
  <p>
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-frame.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-frame.html
index 4828eea..a2a599d 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-frame.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-frame.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 com.google.android.gcm
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-summary.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-summary.html
index 877248b..c8e0341 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-summary.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-summary.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 com.google.android.gcm
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-tree.html b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-tree.html
index bf6fce3..0e27efe 100644
--- a/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-tree.html
+++ b/docs/html/guide/google/gcm/client-javadoc/com/google/android/gcm/package-tree.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 com.google.android.gcm Class Hierarchy
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/constant-values.html b/docs/html/guide/google/gcm/client-javadoc/constant-values.html
index 6ccd123..796d196 100644
--- a/docs/html/guide/google/gcm/client-javadoc/constant-values.html
+++ b/docs/html/guide/google/gcm/client-javadoc/constant-values.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 Constant Field Values
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="default.css" TITLE="Style">
 
@@ -173,6 +173,12 @@
 <TD ALIGN="right"><CODE>"error"</CODE></TD>
 </TR>
 <TR BGCOLOR="white" CLASS="TableRowColor">
+<A NAME="com.google.android.gcm.GCMConstants.EXTRA_FROM"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
+<CODE>public&nbsp;static&nbsp;final&nbsp;java.lang.String</CODE></FONT></TD>
+<TD ALIGN="left"><CODE><A HREF="com/google/android/gcm/GCMConstants.html#EXTRA_FROM">EXTRA_FROM</A></CODE></TD>
+<TD ALIGN="right"><CODE>"from"</CODE></TD>
+</TR>
+<TR BGCOLOR="white" CLASS="TableRowColor">
 <A NAME="com.google.android.gcm.GCMConstants.EXTRA_REGISTRATION_ID"><!-- --></A><TD ALIGN="right"><FONT SIZE="-1">
 <CODE>public&nbsp;static&nbsp;final&nbsp;java.lang.String</CODE></FONT></TD>
 <TD ALIGN="left"><CODE><A HREF="com/google/android/gcm/GCMConstants.html#EXTRA_REGISTRATION_ID">EXTRA_REGISTRATION_ID</A></CODE></TD>
diff --git a/docs/html/guide/google/gcm/client-javadoc/default.css b/docs/html/guide/google/gcm/client-javadoc/default.css
index 2513e69..f11daf7 100644
--- a/docs/html/guide/google/gcm/client-javadoc/default.css
+++ b/docs/html/guide/google/gcm/client-javadoc/default.css
@@ -530,12 +530,12 @@
 }
 .design ol {
   counter-reset: item; }
-  .design ol li {
+  .design ol>li {
     font-size: 14px;
     line-height: 20px;
     list-style-type: none;
     position: relative; }
-    .design ol li:before {
+    .design ol>li:before {
       content: counter(item) ". ";
       counter-increment: item;
       position: absolute;
@@ -561,16 +561,18 @@
       content: "9. "; }
     .design ol li.value-10:before {
       content: "10. "; }
-.design .with-callouts ol li {
+.design .with-callouts ol>li {
   list-style-position: inside;
   margin-left: 0; }
-  .design .with-callouts ol li:before {
+  .design .with-callouts ol>li:before {
     display: inline;
     left: -20px;
     float: left;
     width: 17px;
     color: #33b5e5;
     font-weight: 500; }
+.design .with-callouts ul>li {
+  list-style-position: outside; }
 
 /* special list items */
 li.no-bullet {
@@ -1079,22 +1081,71 @@
    Print Only
    ========================================================================== */
 @media print {
-a {
-    color: inherit;
-}
-.nav-x, .nav-y {
-    display: none;
-}
-.str { color: #060; }
-.kwd { color: #006; font-weight: bold; }
-.com { color: #600; font-style: italic; }
-.typ { color: #404; font-weight: bold; }
-.lit { color: #044; }
-.pun { color: #440; }
-.pln { color: #000; }
-.tag { color: #006; font-weight: bold; }
-.atn { color: #404; }
-.atv { color: #060; }
+  /* configure printed page */
+  @page {
+      margin: 0.75in 1in;
+      widows: 4;
+      orphans: 4;
+  }
+
+  /* reset spacing metrics */
+  html, body, .wrap {
+      margin: 0 !important;
+      padding: 0 !important;
+      width: auto !important;
+  }
+
+  /* leave enough space on the left for bullets */
+  body {
+      padding-left: 20px !important;
+  }
+  #doc-col {
+      margin-left: 0;
+  }
+
+  /* hide a bunch of non-content elements */
+  #header, #footer, #nav-x, #side-nav,
+  .training-nav-top, .training-nav-bottom,
+  #doc-col .content-footer,
+  .nav-x, .nav-y,
+  .paging-links,
+  a.totop {
+      display: none !important;
+  }
+
+  /* remove extra space above page titles */
+  #doc-col .content-header {
+      margin-top: 0;
+  }
+
+  /* bump up spacing above subheadings */
+  h2 {
+      margin-top: 40px !important;
+  }
+
+  /* print link URLs where possible and give links default text color */
+  p a:after {
+      content: " (" attr(href) ")";
+      font-size: 80%;
+  }
+  p a {
+      word-wrap: break-word;
+  }
+  a {
+      color: inherit;
+  }
+
+  /* syntax highlighting rules */
+  .str { color: #060; }
+  .kwd { color: #006; font-weight: bold; }
+  .com { color: #600; font-style: italic; }
+  .typ { color: #404; font-weight: bold; }
+  .lit { color: #044; }
+  .pun { color: #440; }
+  .pln { color: #000; }
+  .tag { color: #006; font-weight: bold; }
+  .atn { color: #404; }
+  .atv { color: #060; }
 }
 
 /* =============================================================================
@@ -2033,8 +2084,11 @@
 #jd-content img.toggle-content-img {
   margin:0 5px 5px 0;
 }
-div.toggle-content > p {
-  padding:0 0 5px;
+div.toggle-content p {
+  margin:10px 0 0;
+}
+div.toggle-content-toggleme {
+  padding:0 0 0 15px;
 }
 
 
@@ -2145,14 +2199,9 @@
 
 .nolist {
   list-style:none;
-  padding:0;
-  margin:0 0 1em 1em;
+  margin-left:0;
 }
 
-.nolist li {
-  padding:0 0 2px;
-  margin:0;
-}
 
 pre.classic {
   background-color:transparent;
@@ -2180,6 +2229,12 @@
   color:#666;
 }
 
+div.note, 
+div.caution, 
+div.warning {
+  margin: 0 0 15px;
+}
+
 p.note, div.note, 
 p.caution, div.caution, 
 p.warning, div.warning {
@@ -2898,10 +2953,6 @@
 
 /* SEARCH RESULTS */
 
-/* disable twiddle and size selectors for left column */
-#leftSearchControl div {
-  padding:0;
-}
 
 #leftSearchControl .gsc-twiddle {
   background-image : none;
@@ -3475,7 +3526,7 @@
 
 .morehover:hover {
   opacity:1;
-  height:345px;
+  height:385px;
   width:268px;
   -webkit-transition-property:height,  -webkit-opacity;
 }
@@ -3489,7 +3540,7 @@
 .morehover .mid {
   width:228px;
   background:url(../images/more_mid.png) repeat-y;
-  padding:10px 20px 10px 20px;
+  padding:10px 20px 0 20px;
 }
 
 .morehover .mid .header {
@@ -3598,15 +3649,19 @@
   padding-top: 14px;
 }
 
+#nav-x .wrap {
+  min-height:34px;
+}
+
 #nav-x .wrap,
 #searchResults.wrap {
     max-width:940px;
     border-bottom:1px solid #CCC;
-    min-height:34px;
-    
 }
 
-
+#searchResults.wrap #leftSearchControl {
+  min-height:700px
+}
 .nav-x {
     margin-left:0;
     margin-bottom:0;
@@ -3762,7 +3817,8 @@
   height: 300px;
 }
 .slideshow-develop img.play {
-  width:350px;
+  max-width:350px;
+  max-height:240px;
   margin:20px 0 0 90px;
   -webkit-transform: perspective(800px ) rotateY( 35deg );
   box-shadow: -16px 20px 40px rgba(0, 0, 0, 0.3);
@@ -3817,6 +3873,7 @@
 .feed .feed-nav li {
   list-style: none;
   float: left;
+  height: 21px; /* +4px bottom border = 25px; same as .feed-nav */
   margin-right: 25px;
   cursor: pointer;
 }
@@ -3969,21 +4026,24 @@
 .landing-docs {
   margin:20px 0 0;
 }
-.landing-banner {
-  height:280px;
-}
 .landing-banner .col-6:first-child,
-.landing-docs .col-6:first-child {
+.landing-docs .col-6:first-child,
+.landing-docs .col-12 {
   margin-left:0;
+  min-height:280px;
 }
 .landing-banner .col-6:last-child,
-.landing-docs .col-6:last-child {
+.landing-docs .col-6:last-child,
+.landing-docs .col-12 {
   margin-right:0;
 }
 
 .landing-banner h1 {
   margin-top:0;
 }
+.landing-docs {
+  clear:left;
+}
 .landing-docs h3 {
   font-size:14px;
   line-height:21px;
@@ -4002,4 +4062,99 @@
 
 .plusone {
   float:right;
-}
\ No newline at end of file
+}
+
+
+
+/************* HOME/LANDING PAGE *****************/
+
+.slideshow-home {
+  height: 500px;
+  width: 940px;
+  border-bottom: 1px solid #CCC;
+  position: relative;
+  margin: 0;
+}
+.slideshow-home .frame {
+  width: 940px;
+  height: 500px;
+}
+.slideshow-home .content-left {
+  float: left;
+  text-align: center;
+  vertical-align: center;
+  margin: 0 0 0 35px;
+}
+.slideshow-home .content-right {
+  margin: 80px 0 0 0;
+}
+.slideshow-home .content-right p {
+  margin-bottom: 10px;
+}
+.slideshow-home .content-right p:last-child {
+  margin-top: 15px;
+}
+.slideshow-home .content-right h1 {
+  padding:0;
+}
+.slideshow-home .item {
+  height: 500px;
+  width: 940px;
+}
+.home-sections {
+  padding: 30px 20px 20px;
+  margin: 20px 0;
+  background: -webkit-linear-gradient(top, #F6F6F6,#F9F9F9);
+}
+.home-sections ul {
+  margin: 0;
+}
+.home-sections ul li {
+  float: left;
+  display: block;
+  list-style: none;
+  width: 170px;
+  height: 35px;
+  border: 1px solid #ccc;
+  background: white;
+  margin-right: 10px;
+  border-radius: 1px;
+  -webkit-border-radius: 1px;
+  -moz-border-radius: 1px;
+  box-shadow: 1px 1px 5px #EEE;
+  -webkit-box-shadow: 1px 1px 5px #EEE;
+  -moz-box-shadow: 1px 1px 5px #EEE;
+  background: white;
+}
+.home-sections ul li:hover {
+  background: #F9F9F9;
+  border: 1px solid #CCC;
+}
+.home-sections ul li a,
+.home-sections ul li a:hover {
+  font-weight: bold;
+  margin-top: 8px;
+  line-height: 18px;
+  float: left;
+  width: 100%;
+  text-align: center;
+  color: #09c !important;
+}
+.home-sections ul li a {
+  font-weight: bold;
+  margin-top: 8px;
+  line-height: 18px;
+  float: left;
+  width:100%;
+  text-align:center;
+}
+.home-sections ul li img {
+  float: left;
+  margin: -8px 0 0 10px;
+}
+.home-sections ul li.last {
+  margin-right: 0px;
+}
+#footer {
+  margin-top: -40px;
+}
diff --git a/docs/html/guide/google/gcm/client-javadoc/deprecated-list.html b/docs/html/guide/google/gcm/client-javadoc/deprecated-list.html
index 6b86bfe..d9a63c5 100644
--- a/docs/html/guide/google/gcm/client-javadoc/deprecated-list.html
+++ b/docs/html/guide/google/gcm/client-javadoc/deprecated-list.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 Deprecated List
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/help-doc.html b/docs/html/guide/google/gcm/client-javadoc/help-doc.html
index ffd1f77..af1bca8 100644
--- a/docs/html/guide/google/gcm/client-javadoc/help-doc.html
+++ b/docs/html/guide/google/gcm/client-javadoc/help-doc.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 API Help
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/client-javadoc/index-all.html b/docs/html/guide/google/gcm/client-javadoc/index-all.html
index 74e6095..408edee 100644
--- a/docs/html/guide/google/gcm/client-javadoc/index-all.html
+++ b/docs/html/guide/google/gcm/client-javadoc/index-all.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 Index
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="./default.css" TITLE="Style">
 
@@ -124,29 +124,33 @@
  server that can be retried later.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_APPLICATION_PENDING_INTENT"><B>EXTRA_APPLICATION_PENDING_INTENT</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
-<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION"><CODE>GCMConstants.INTENT_TO_GCM_REGISTRATION</CODE></A> to get the application
- id.
+<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION">"com.google.android.c2dm.intent.REGISTER"</A> to get the
+ application info.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_ERROR"><B>EXTRA_ERROR</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
-<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  an error when the registration fails.
+<DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_FROM"><B>EXTRA_FROM</B></A> - 
+Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
+<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A> to indicate which
+ sender (Google API project id) sent the message.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_REGISTRATION_ID"><B>EXTRA_REGISTRATION_ID</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
-<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  the registration id when the registration succeeds.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_SENDER"><B>EXTRA_SENDER</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
-<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION"><CODE>GCMConstants.INTENT_TO_GCM_REGISTRATION</CODE></A> to indicate the sender
- account (a Google email) that owns the application.
+<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_TO_GCM_REGISTRATION">"com.google.android.c2dm.intent.REGISTER"</A> to indicate which
+ senders (Google API project ids) can send messages to the application.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_SPECIAL_MESSAGE"><B>EXTRA_SPECIAL_MESSAGE</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
-<DD>Type of message present in the <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE"><CODE>GCMConstants.INTENT_FROM_GCM_MESSAGE</CODE></A> intent.
+<DD>Type of message present in the <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_MESSAGE">"com.google.android.c2dm.intent.RECEIVE"</A> intent.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_TOTAL_DELETED"><B>EXTRA_TOTAL_DELETED</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
 <DD>Number of messages deleted by the server because the device was idle.
 <DT><A HREF="./com/google/android/gcm/GCMConstants.html#EXTRA_UNREGISTERED"><B>EXTRA_UNREGISTERED</B></A> - 
 Static variable in class com.google.android.gcm.<A HREF="./com/google/android/gcm/GCMConstants.html" title="class in com.google.android.gcm">GCMConstants</A>
-<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK"><CODE>GCMConstants.INTENT_FROM_GCM_REGISTRATION_CALLBACK</CODE></A> to indicate
+<DD>Extra used on <A HREF="./com/google/android/gcm/GCMConstants.html#INTENT_FROM_GCM_REGISTRATION_CALLBACK">"com.google.android.c2dm.intent.REGISTRATION"</A> to indicate
  that the application has been unregistered.
 </DL>
 <HR>
diff --git a/docs/html/guide/google/gcm/client-javadoc/index.html b/docs/html/guide/google/gcm/client-javadoc/index.html
index 26e57f6..fa7af90 100644
--- a/docs/html/guide/google/gcm/client-javadoc/index.html
+++ b/docs/html/guide/google/gcm/client-javadoc/index.html
@@ -2,7 +2,7 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc on Mon Jul 16 14:13:37 PDT 2012-->
+<!-- Generated by javadoc on Wed Aug 22 13:22:47 PDT 2012-->
 <TITLE>
 Generated Documentation (Untitled)
 </TITLE>
diff --git a/docs/html/guide/google/gcm/client-javadoc/overview-tree.html b/docs/html/guide/google/gcm/client-javadoc/overview-tree.html
index c9076f1..392f3e0 100644
--- a/docs/html/guide/google/gcm/client-javadoc/overview-tree.html
+++ b/docs/html/guide/google/gcm/client-javadoc/overview-tree.html
@@ -2,12 +2,12 @@
 <!--NewPage-->
 <HTML>
 <HEAD>
-<!-- Generated by javadoc (build 1.6.0_26) on Mon Jul 16 14:13:37 PDT 2012 -->
+<!-- Generated by javadoc (build 1.6.0_26) on Wed Aug 22 13:22:47 PDT 2012 -->
 <TITLE>
 Class Hierarchy
 </TITLE>
 
-<META NAME="date" CONTENT="2012-07-16">
+<META NAME="date" CONTENT="2012-08-22">
 
 <LINK REL ="stylesheet" TYPE="text/css" HREF="default.css" TITLE="Style">
 
diff --git a/docs/html/guide/google/gcm/gcm.jd b/docs/html/guide/google/gcm/gcm.jd
index f471560..5515f31 100644
--- a/docs/html/guide/google/gcm/gcm.jd
+++ b/docs/html/guide/google/gcm/gcm.jd
@@ -203,7 +203,7 @@
 <p>The registration ID lasts until the Android application explicitly unregisters
 itself, or until Google refreshes the registration ID for your Android application.</p>
 
-<p class="note"><strong>Note:</strong> When users uninstall an application, it is not automatically unregistered on GCM. It is only  unregistered when the GCM server tries to send a message to the device and the device answers that the application is uninstalled. At that point, you server should mark the device as unregistered (the server will receive a <code><a href="#unreg_device">NotRegistered</a></code> error).
+<p class="note"><strong>Note:</strong> When users uninstall an application, it is not automatically unregistered on GCM. It is only  unregistered when the GCM server tries to send a message to the device and the device answers that the application is uninstalled or it does not have a broadcast receiver configured to receive <code>com.google.android.c2dm.intent.RECEIVE</code> intents. At that point, you server should mark the device as unregistered (the server will receive a <code><a href="#unreg_device">NotRegistered</a></code> error).
   <p>
 Note that it might take a few minutes for the registration ID to be completed removed from the GCM server. So if the 3rd party server sends a message during this time, it will get a valid message ID, even though the message will not be delivered to the device.</p>
 </p>
@@ -546,7 +546,7 @@
 deliver the messages sent by the 3rd-party server to the application running in the device.
 If the server included key-pair values in the <code>data</code> parameter, they are available as 
 extras in this intent, with the keys being the extra names. GCM also includes an  extra called 
-<code>from</code> which contains the sender ID as an string.
+<code>from</code> which contains the sender ID as an string, and another called <code>collapse_key</code> containing the collapse key (when in use).
 
 <p>Here is an example, again using the <code>MyIntentReceiver</code> class:</p>
 
@@ -653,7 +653,7 @@
     <td><code>data</code></td>
     <td>A JSON object whose fields represents the key-value pairs of the message's payload data. If present, the payload data it will be
 included in the Intent as application data, with the key being the extra's name. For instance, <code>"data":{"score":"3x1"}</code> would result in an intent extra named <code>score</code> whose value is the string <code>3x1</code>. 
-There is no limit on the number of key/value pairs, though there is a limit on the total size of the message (4kb). Note that the values <em>must be enclosed by strings</em>. If you want to include objects or other non-string data types (such as integers or booleans), you have to do the conversion to string yourself. Also note that the key cannot be a reserved word (<code>from</code> or any word starting with <code>google.</code>). Optional.</td>
+There is no limit on the number of key/value pairs, though there is a limit on the total size of the message (4kb). The values could be any JSON object, but we recommend using strings, since the values will be converted to strings in the GCM server anyway. If you want to include objects or other non-string data types (such as integers or booleans), you have to do the conversion to string yourself. Also note that the key cannot be a reserved word (<code>from</code> or any word starting with <code>google.</code>). To complicate things slightly, there are some reserved words (such as <code>collapse_key</code>) that are technically allowed in payload data. However, if the request also contains the word, the value in the request will overwrite the value in the payload data. Hence using words that are defined as field names in this table is not recommended, even in cases where they are technically allowed. Optional.</td>
 
   </tr>
   <tr>
@@ -685,7 +685,8 @@
   </tr>
   <tr>
     <td><code>data.&lt;key&gt;</code></td>
-    <td>Payload data, expressed as parameters prefixed with <code>data.</code> and suffixed as the key. For instance, a parameter of <code>data.score=3x1</code> would result in an intent extra named <code>score</code> whose value is the string <code>3x1</code>. There is no limit on the number of key/value parameters, though there is a limit on the total size of the  message. Note that the key cannot be a reserved word (<code>from</code> or any word starting with <code>google.</code>). Optional.</td>
+    <td>Payload data, expressed as parameters prefixed with <code>data.</code> and suffixed as the key. For instance, a parameter of <code>data.score=3x1</code> would result in an intent extra named <code>score</code> whose value is the string <code>3x1</code>. There is no limit on the number of key/value parameters, though there is a limit on the total size of the  message. Also note that the key cannot be a reserved word (<code>from</code> or any word starting with 
+<code>google.</code>). To complicate things slightly, there are some reserved words (such as <code>collapse_key</code>) that are technically allowed in payload data. However, if the request also contains the word, the value in the request will overwrite the value in the payload data. Hence using words that are defined as field names in this table is not recommended, even in cases where they are technically allowed. Optional.</td>
   </tr>
   <tr>
     <td><code>delay_while_idle</code></td>
@@ -816,7 +817,7 @@
   <li>Otherwise, get the value of <code>error</code>:
     <ul>
       <li>If it is <code>Unavailable</code>, you could retry to send it in another request.</li>
-      <li>If it is <code>NotRegistered</code>, you should remove the registration ID from your server database because the application was uninstalled from the device.</li>
+      <li>If it is <code>NotRegistered</code>, you should remove the registration ID from your server database because the application was uninstalled from the device or it does not have a broadcast receiver configured to receive <code>com.google.android.c2dm.intent.RECEIVE</code> intents.</li>
       <li>Otherwise, there is something wrong in the registration ID passed in the request; it is probably a non-recoverable error that will also require removing the registration from the server database. See <a href="#error_codes">Interpreting an error response</a> for all possible error values.</li>
     </ul>
   </li>
@@ -850,6 +851,7 @@
 <dt id="invalid_reg"><strong>Invalid Registration ID</strong></dt>
 <dd>Check the formatting of the registration ID that you pass to the server. Make sure it matches the registration ID the phone receives in the <code>com.google.android.c2dm.intent.REGISTRATION</code> intent and that you're not truncating it or adding additional characters. 
 <br/>Happens when error code is <code>InvalidRegistration</code>.</dd>
+
 <dt id="mismatched_sender"><strong>Mismatched Sender</strong></dt>
 <dd>A registration ID is tied to a certain group of senders. When an application registers for GCM usage, it must specify which senders are allowed to send messages. Make sure you're using one of those when trying to send messages to the device. If you switch to a different sender, the existing registration IDs won't work. 
 Happens when error code is <code>MismatchSenderId</code>.</dd>
@@ -860,15 +862,21 @@
   <li>If the application manually unregisters by issuing a <span class="prettyprint pretty-java"><code>com.google.android.c2dm.intent.UNREGISTER</code></span><code> </code>intent.</li>
   <li>If the application is automatically unregistered, which can happen (but is not guaranteed) if the user uninstalls the application.</li>
   <li>If the registration ID expires. Google might decide to refresh registration IDs. </li>
+  <li>If the application is updated but the new version does not have a broadcast receiver configured to receive <code>com.google.android.c2dm.intent.RECEIVE</code> intents.</li>
 </ul>
 For all these cases, you should remove this registration ID from the 3rd-party server and stop using it to send 
 messages. 
 <br/>Happens when error code is <code>NotRegistered</code>.</dd>
 
-  <dt id="big_msg"><strong>Message Too Big</strong></dt>
+<dt id="big_msg"><strong>Message Too Big</strong></dt>
   <dd>The total size of the payload data that is included in a message can't exceed 4096 bytes. Note that this includes both the size of the keys as well as the values. 
 <br/>Happens when error code is <code>MessageTooBig</code>.</dd>
 
+<dt id="invalid_datakey"><strong>Invalid Data Key</strong></dt>
+<dd>The payload data contains a key (such as <code>from</code> or any value prefixed by <code>google.</code>) that is used internally by GCM in the  <code>com.google.android.c2dm.intent.RECEIVE</code> Intent and cannot be used. Note that some words (such as <code>collapse_key</code>) are also used by GCM but are allowed in the payload, in which case the payload value will be overridden by the GCM value. 
+<br />
+Happens when the error code is <code>InvalidDataKey</code>.</dd>
+
 <dt id="ttl_error"><strong>Invalid Time To Live</strong></dt>
   <dd>The value for the Time to Live field must be an integer representing a duration in seconds between 0 and 2,419,200 (4 weeks). Happens when error code is <code>InvalidTtl</code>.
 </dd>