diff --git a/res/drawable-hdpi/ic_add_authentication.png b/res/drawable-hdpi/ic_add_authentication.png
new file mode 100644
index 0000000..f3fde97
--- /dev/null
+++ b/res/drawable-hdpi/ic_add_authentication.png
Binary files differ
diff --git a/res/drawable-hdpi/ic_clear_authentication.png b/res/drawable-hdpi/ic_clear_authentication.png
new file mode 100644
index 0000000..800eca4
--- /dev/null
+++ b/res/drawable-hdpi/ic_clear_authentication.png
Binary files differ
diff --git a/res/layout/account_setup_incoming_fragment.xml b/res/layout/account_setup_incoming_fragment.xml
index 4e64a5b..0754056 100644
--- a/res/layout/account_setup_incoming_fragment.xml
+++ b/res/layout/account_setup_incoming_fragment.xml
@@ -20,6 +20,7 @@
     android:layout_height="wrap_content"
     android:layout_weight="1"
     android:orientation="vertical" >
+
     <TextView
         android:text="@string/account_setup_incoming_username_label"
         android:layout_height="wrap_content"
@@ -33,19 +34,12 @@
         android:hint="@string/account_setup_incoming_username_label"
         android:inputType="textEmailAddress"
         android:imeOptions="actionNext" />
-    <TextView
-        android:text="@string/account_setup_incoming_password_label"
-        android:layout_height="wrap_content"
+
+    <FrameLayout
+        android:id="@+id/authentication_container"
         android:layout_width="match_parent"
-        android:textAppearance="?android:attr/textAppearanceSmall"
-        android:textColor="?android:attr/textColorPrimary" />
-    <EditText
-        android:id="@+id/account_password"
-        android:layout_height="wrap_content"
-        android:layout_width="match_parent"
-        android:hint="@string/account_setup_incoming_password_label"
-        android:inputType="textPassword"
-        android:imeOptions="actionNext" />
+        android:layout_height="wrap_content"/>
+
     <!-- This text may be changed in code if the server is IMAP, etc. -->
     <TextView
         android:id="@+id/account_server_label"
@@ -87,10 +81,6 @@
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:contentDescription="@string/account_setup_incoming_security_label" />
-    <include
-        android:id="@+id/client_certificate_selector"
-        layout="@layout/client_certificate_selector"
-        android:visibility="gone" />
     <TextView
         android:id="@+id/account_delete_policy_label"
         android:text="@string/account_setup_incoming_delete_policy_label"
@@ -103,6 +93,7 @@
         android:layout_height="wrap_content"
         android:layout_width="match_parent"
         android:contentDescription="@string/account_setup_incoming_delete_policy_label" />
+
     <LinearLayout
         android:id="@+id/imap_path_prefix_section"
         android:layout_width="match_parent"
@@ -122,22 +113,4 @@
             android:inputType="text"
             android:imeOptions="actionDone" />
     </LinearLayout>
-    <LinearLayout
-        android:id="@+id/device_id_section"
-        android:layout_width="match_parent"
-        android:layout_height="wrap_content"
-        android:orientation="vertical"
-        android:visibility="gone">
-        <TextView
-            android:text="@string/account_setup_exchange_device_id_label"
-            android:layout_height="wrap_content"
-            android:layout_width="match_parent"
-            android:textColor="?android:attr/textColorPrimary" />
-        <TextView
-            android:id="@+id/device_id"
-            android:layout_height="wrap_content"
-            android:layout_width="match_parent"
-            android:textAppearance="?android:attr/textAppearanceMedium"
-            android:textColor="#ffbebebe" />
-    </LinearLayout>
 </LinearLayout>
diff --git a/res/layout/authentication_fragment.xml b/res/layout/authentication_fragment.xml
new file mode 100644
index 0000000..3ae2915
--- /dev/null
+++ b/res/layout/authentication_fragment.xml
@@ -0,0 +1,180 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2010 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_weight="1"
+    android:orientation="vertical" >
+
+    <LinearLayout
+        android:id="@+id/imap_authentication"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_weight="1"
+        android:orientation="vertical" >
+
+        <TextView
+            android:id="@+id/authentication_label"
+            android:text="@string/authenticiation_label"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:textAppearance="?android:attr/textAppearanceSmall"
+            android:textColor="?android:attr/textColorPrimary" />
+
+        <RelativeLayout
+            android:id="@+id/authentication_selection"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <ImageView
+                android:id="@+id/add_authentication"
+                android:contentDescription="@string/clear_authentication_label"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_alignParentLeft="true"
+                android:clickable="true"
+                android:src="@drawable/ic_add_authentication"
+                android:layout_centerVertical="true" />
+
+            <TextView
+                android:id="@+id/add_authentication_label"
+                android:text="@string/add_authentication_label"
+                android:layout_height="wrap_content"
+                android:layout_width="match_parent"
+                android:layout_toRightOf="@id/add_authentication"
+                android:textAppearance="?android:attr/textAppearanceSmall"
+                android:textColor="?android:attr/textColorPrimary"
+                android:layout_centerVertical="true" />
+
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:id="@+id/imap_password_selection"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content" >
+
+            <TextView
+                android:id="@+id/account_setup_basics_password_label"
+                android:text="@string/account_setup_basics_password_label"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_alignParentLeft="true"
+                android:textAppearance="?android:attr/textAppearanceSmall"
+                android:textColor="?android:attr/textColorPrimary"
+                android:layout_centerVertical="true" />
+
+            <EditText
+                android:id="@+id/imap_account_password"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_toRightOf="@id/account_setup_basics_password_label"
+                android:layout_toLeftOf="@+id/clear_password"
+                android:hint="@string/account_setup_incoming_password_label"
+                android:inputType="textPassword"
+                android:imeOptions="actionNext"
+                android:layout_centerVertical="true" />
+
+            <ImageView
+                android:id="@+id/clear_password"
+                android:contentDescription="@string/clear_authentication_label"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_alignParentRight="true"
+                android:clickable="true"
+                android:src="@drawable/ic_clear_authentication"
+                android:layout_centerVertical="true" />
+        </RelativeLayout>
+
+        <RelativeLayout
+            android:id="@+id/oauth_selection"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content">
+
+            <TextView
+                android:id="@+id/signed_in_with_service_label"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_alignParentLeft="true"
+                android:layout_toLeftOf="@+id/clear_oauth"
+                android:textAppearance="?android:attr/textAppearanceSmall"
+                android:textColor="?android:attr/textColorPrimary"
+                android:layout_centerVertical="true" />
+
+            <ImageView
+                android:id="@+id/clear_oauth"
+                android:contentDescription="@string/clear_authentication_label"
+                android:layout_height="wrap_content"
+                android:layout_width="wrap_content"
+                android:layout_alignParentRight="true"
+                android:clickable="true"
+                android:src="@drawable/ic_clear_authentication"
+                android:layout_centerVertical="true" />
+        </RelativeLayout>
+
+    </LinearLayout>
+
+    <LinearLayout
+        android:id="@+id/standard_password_selection"
+        android:layout_width="match_parent"
+        android:layout_height="0dip"
+        android:layout_weight="1"
+        android:orientation="vertical" >
+
+        <TextView
+            android:text="@string/account_setup_incoming_password_label"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:textAppearance="?android:attr/textAppearanceSmall"
+            android:textColor="?android:attr/textColorPrimary" />
+
+        <EditText
+            android:id="@+id/account_password"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:hint="@string/account_setup_incoming_password_label"
+            android:inputType="textPassword"
+            android:imeOptions="actionNext" />
+    </LinearLayout>
+
+    <include
+        android:id="@+id/client_certificate_selector"
+        layout="@layout/client_certificate_selector"
+        android:visibility="visible" />
+
+    <LinearLayout
+        android:id="@+id/device_id_section"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:visibility="gone">
+
+        <TextView
+            android:text="@string/account_setup_exchange_device_id_label"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:textColor="?android:attr/textColorPrimary" />
+
+        <TextView
+            android:id="@+id/device_id"
+            android:layout_height="wrap_content"
+            android:layout_width="match_parent"
+            android:textAppearance="?android:attr/textAppearanceMedium"
+            android:textColor="#ffbebebe" />
+
+    </LinearLayout>
+
+</LinearLayout>
diff --git a/res/layout/password_selector.xml b/res/layout/password_selector.xml
new file mode 100644
index 0000000..b402f10
--- /dev/null
+++ b/res/layout/password_selector.xml
@@ -0,0 +1,37 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2011 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_weight="1"
+    android:orientation="vertical" >
+    
+    <TextView
+        android:text="@string/account_setup_incoming_password_label"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:textAppearance="?android:attr/textAppearanceSmall"
+        android:textColor="?android:attr/textColorPrimary" />
+    <EditText
+        android:id="@+id/account_password"
+        android:layout_height="wrap_content"
+        android:layout_width="match_parent"
+        android:hint="@string/account_setup_incoming_password_label"
+        android:inputType="textPassword"
+        android:imeOptions="actionNext" />
+
+</LinearLayout>
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 322934c..bd198df 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -30,6 +30,7 @@
         <attr name="defaultSsl" format="boolean"/>
         <attr name="offerTls" format="boolean"/>
         <attr name="offerCerts" format="boolean"/>
+        <attr name="offerOAuth" format="boolean"/>
         <attr name="offerLocalDeletes" format="boolean"/>
         <attr name="defaultLocalDeletes" format="integer"/>
         <attr name="offerPrefix" format="boolean"/>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index c5dda07..6034ebc 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -202,6 +202,14 @@
     <string name="account_setup_basics_email_label">Email address</string>
     <!-- On "Set up email" screen, hint for account email password text field -->
     <string name="account_setup_basics_password_label">Password</string>
+    <!--  On the "Setup up email" screen, label indicating what service we are signed in with [CHAR LIMIT=40] -->
+    <string name="signed_in_with_service_label">Signed in with %s</string>
+    <!-- Label for the authentication section [CHAR LIMIT=20] -->
+    <string name="authenticiation_label">Authentication</string>
+    <!-- Label for the add authentication icon [CHAR LIMIT=40] -->
+    <string name="add_authentication_label">Add authentication</string>
+    <!-- Label for the add authentication icon [CHAR LIMIT=40] -->
+    <string name="clear_authentication_label">Clear authentication</string>
     <!-- Button name on "Set up email" screen [CHAR LIMIT=20] -->
     <string name="account_setup_basics_manual_setup_action">Manual setup</string>
     <!-- Do not translate. Button name on "Set up email" screen [CHAR LIMIT=20] TODO: This is a temporary workaround
diff --git a/res/xml/services.xml b/res/xml/services.xml
index 2d7446a..0cd01c6 100644
--- a/res/xml/services.xml
+++ b/res/xml/services.xml
@@ -33,6 +33,7 @@
      The following optional attributes default to "false":
          offerTls: whether a TLS option (e.g. STARTTLS) is offered for this service
          offerCerts: whether or not certificate authentication is an option for this service
+         offerOAuth: whether or not OAuth authentication is an option for this service
          usesSmtp: whether SMTP is used as the outgoing protocol for this service
          offerPrefix: whether a "prefix" is offered to the user (for IMAP)
          offerLocalDeletes: whether an option to delete locally is offered
@@ -83,6 +84,7 @@
         email:offerPrefix="true"
         email:syncChanges="true"
         email:inferPrefix="imap"
+        email:offerOAuth="true"
         email:offerLoadMore="true"
         email:offerMoveTo="true"
          />
diff --git a/src/com/android/email/activity/setup/AccountSettings.java b/src/com/android/email/activity/setup/AccountSettings.java
index 501c8bc..eb089ec 100644
--- a/src/com/android/email/activity/setup/AccountSettings.java
+++ b/src/com/android/email/activity/setup/AccountSettings.java
@@ -388,6 +388,7 @@
         super.onBackPressed();
     }
 
+
     private void launchMailboxSettings(Intent intent) {
         final Folder folder = intent.getParcelableExtra(EditSettingsExtras.EXTRA_FOLDER);
 
@@ -402,7 +403,6 @@
         finish();
     }
 
-
     private void enableDebugMenu() {
         mShowDebugMenu = true;
         invalidateHeaders();
diff --git a/src/com/android/email/activity/setup/AccountSetupIncomingFragment.java b/src/com/android/email/activity/setup/AccountSetupIncomingFragment.java
index 817f6d0..b1d113a 100644
--- a/src/com/android/email/activity/setup/AccountSetupIncomingFragment.java
+++ b/src/com/android/email/activity/setup/AccountSetupIncomingFragment.java
@@ -17,6 +17,9 @@
 package com.android.email.activity.setup;
 
 import android.app.Activity;
+import android.app.Fragment;
+import android.app.FragmentManager;
+import android.app.FragmentTransaction;
 import android.content.Context;
 import android.content.Intent;
 import android.net.Uri;
@@ -37,6 +40,7 @@
 
 import com.android.email.R;
 import com.android.email.activity.UiUtilities;
+import com.android.email.activity.setup.AuthenticationFragment.AuthenticationCallback;
 import com.android.email.provider.AccountBackupRestore;
 import com.android.email.service.EmailServiceUtils;
 import com.android.email.service.EmailServiceUtils.EmailServiceInfo;
@@ -61,14 +65,14 @@
  * (for editing existing accounts).
  */
 public class AccountSetupIncomingFragment extends AccountServerBaseFragment
-        implements HostCallback {
+        implements HostCallback, AuthenticationCallback {
 
     private static final int CERTIFICATE_REQUEST = 0;
     private final static String STATE_KEY_CREDENTIAL = "AccountSetupIncomingFragment.credential";
     private final static String STATE_KEY_LOADED = "AccountSetupIncomingFragment.loaded";
 
     private EditText mUsernameView;
-    private EditText mPasswordView;
+    private AuthenticationFragment mAuthenticationFragment;
     private TextView mServerLabelView;
     private EditText mServerView;
     private EditText mPortView;
@@ -76,9 +80,7 @@
     private TextView mDeletePolicyLabelView;
     private Spinner mDeletePolicyView;
     private View mImapPathPrefixSectionView;
-    private View mDeviceIdSectionView;
     private EditText mImapPathPrefixView;
-    private CertificateSelector mClientCertificateSelector;
     // Delete policy as loaded from the device
     private int mLoadedDeletePolicy;
 
@@ -123,7 +125,6 @@
         final View view = inflater.inflate(layoutId, container, false);
 
         mUsernameView = UiUtilities.getView(view, R.id.account_username);
-        mPasswordView = UiUtilities.getView(view, R.id.account_password);
         mServerLabelView = UiUtilities.getView(view, R.id.account_server_label);
         mServerView = UiUtilities.getView(view, R.id.account_server);
         mPortView = UiUtilities.getView(view, R.id.account_port);
@@ -131,9 +132,7 @@
         mDeletePolicyLabelView = UiUtilities.getView(view, R.id.account_delete_policy_label);
         mDeletePolicyView = UiUtilities.getView(view, R.id.account_delete_policy);
         mImapPathPrefixSectionView = UiUtilities.getView(view, R.id.imap_path_prefix_section);
-        mDeviceIdSectionView = UiUtilities.getView(view, R.id.device_id_section);
         mImapPathPrefixView = UiUtilities.getView(view, R.id.imap_path_prefix);
-        mClientCertificateSelector = UiUtilities.getView(view, R.id.client_certificate_selector);
 
         // Updates the port when the user changes the security type. This allows
         // us to show a reasonable default which the user can change.
@@ -165,7 +164,6 @@
                     getString(R.string.account_setup_username_uneditable_error));
         }
         mUsernameView.addTextChangedListener(mValidationTextWatcher);
-        mPasswordView.addTextChangedListener(mValidationTextWatcher);
         mServerView.addTextChangedListener(mValidationTextWatcher);
         mPortView.addTextChangedListener(mValidationTextWatcher);
 
@@ -175,6 +173,14 @@
         // Additional setup only used while in "settings" mode
         onCreateViewSettingsMode(view);
 
+        final FragmentManager fm = getFragmentManager();
+        final FragmentTransaction ft = fm.beginTransaction();
+        mAuthenticationFragment = new AuthenticationFragment();
+        ft.add(R.id.authentication_container, mAuthenticationFragment, "AuthenticationFragment");
+        ft.commit();
+
+        mAuthenticationFragment.setAuthenticationCallback(this);
+
         return view;
     }
 
@@ -184,14 +190,13 @@
             LogUtils.d(Logging.LOG_TAG, "AccountSetupIncomingFragment onActivityCreated");
         }
         super.onActivityCreated(savedInstanceState);
-        mClientCertificateSelector.setHostActivity(this);
 
         final Context context = getActivity();
         final SetupDataFragment.SetupDataContainer container =
                 (SetupDataFragment.SetupDataContainer) context;
         mSetupData = container.getSetupData();
-
-        final HostAuth recvAuth = mSetupData.getAccount().mHostAuthRecv;
+        final Account account = mSetupData.getAccount();
+        final HostAuth recvAuth = account.getOrCreateHostAuthRecv(mContext);
         mServiceInfo = EmailServiceUtils.getServiceInfo(mContext, recvAuth.mProtocol);
 
         if (mServiceInfo.offerLocalDeletes) {
@@ -286,14 +291,15 @@
     public void onDestroyView() {
         // Make sure we don't get callbacks after the views are supposed to be destroyed
         // and also don't hold onto them longer than we need
+        final FragmentManager fm = getFragmentManager();
+        final FragmentTransaction ft = fm.beginTransaction();
+        ft.remove(mAuthenticationFragment);
+        ft.commit();
+
         if (mUsernameView != null) {
             mUsernameView.removeTextChangedListener(mValidationTextWatcher);
         }
         mUsernameView = null;
-        if (mPasswordView != null) {
-            mPasswordView.removeTextChangedListener(mValidationTextWatcher);
-        }
-        mPasswordView = null;
         mServerLabelView = null;
         if (mServerView != null) {
             mServerView.removeTextChangedListener(mValidationTextWatcher);
@@ -310,9 +316,7 @@
         mDeletePolicyLabelView = null;
         mDeletePolicyView = null;
         mImapPathPrefixSectionView = null;
-        mDeviceIdSectionView = null;
         mImapPathPrefixView = null;
-        mClientCertificateSelector = null;
 
         super.onDestroyView();
     }
@@ -387,6 +391,8 @@
 
         final Account account = mSetupData.getAccount();
         final HostAuth recvAuth = account.getOrCreateHostAuthRecv(mContext);
+        mServiceInfo = EmailServiceUtils.getServiceInfo(mContext, recvAuth.mProtocol);
+        mAuthenticationFragment.setAuthInfo(mServiceInfo, recvAuth);
 
         final String username = recvAuth.mLogin;
         if (username != null) {
@@ -398,14 +404,6 @@
             //}
             mUsernameView.setText(username);
         }
-        final String password = recvAuth.mPassword;
-        if (password != null) {
-            mPasswordView.setText(password);
-            // Since username is uneditable, focus on the next editable field
-            if (mSettingsMode) {
-                mPasswordView.requestFocus();
-            }
-        }
 
         if (mServiceInfo.offerPrefix) {
             final String prefix = recvAuth.mDomain;
@@ -450,14 +448,11 @@
     private void validateFields() {
         if (!mLoaded) return;
         enableNextButton(!TextUtils.isEmpty(mUsernameView.getText())
-                && !TextUtils.isEmpty(mPasswordView.getText())
+                && mAuthenticationFragment.getAuthValid()
                 && Utility.isServerNameValid(mServerView)
                 && Utility.isPortFieldValid(mPortView));
 
         mCacheLoginCredential = mUsernameView.getText().toString().trim();
-
-        // Warn (but don't prevent) if password has leading/trailing spaces
-        AccountSettingsUtils.checkPasswordSpaces(mContext, mPasswordView);
     }
 
     private int getPortFromSecurityType(boolean useSsl) {
@@ -473,20 +468,7 @@
     }
 
     public void onUseSslChanged(boolean useSsl) {
-        if (mServiceInfo.offerCerts) {
-            final int mode = useSsl ? View.VISIBLE : View.GONE;
-            mClientCertificateSelector.setVisibility(mode);
-            String deviceId = "";
-            try {
-                deviceId = Device.getDeviceId(mContext);
-            } catch (IOException e) {
-                // Not required
-            }
-            ((TextView) UiUtilities.getView(getView(), R.id.device_id)).setText(deviceId);
-
-            mDeviceIdSectionView.setVisibility(mode);
-            //UiUtilities.setVisibilitySafe(getView(), R.id.client_certificate_divider, mode);
-        }
+        mAuthenticationFragment.onUseSslChanged(useSsl);
     }
 
     private void updatePortFromSecurityType() {
@@ -545,7 +527,7 @@
 
         final HostAuth recvAuth = account.getOrCreateHostAuthRecv(mContext);
         final String userName = mUsernameView.getText().toString().trim();
-        final String userPassword = mPasswordView.getText().toString();
+        final String userPassword = mAuthenticationFragment.getPassword().toString();
         recvAuth.setLogin(userName, userPassword);
 
         final String serverAddress = mServerView.getText().toString().trim();
@@ -565,7 +547,7 @@
         } else {
             recvAuth.mDomain = null;
         }
-        recvAuth.mClientCertAlias = mClientCertificateSelector.getCertificate();
+        recvAuth.mClientCertAlias = mAuthenticationFragment.getClientCertificate();
 
         mCallback.onProceedNext(SetupDataFragment.CHECK_INCOMING, this);
         clearButtonBounce();
@@ -605,12 +587,7 @@
     }
 
     @Override
-    public void onActivityResult(int requestCode, int resultCode, Intent data) {
-        if (requestCode == CERTIFICATE_REQUEST && resultCode == Activity.RESULT_OK) {
-            final String certAlias = data.getStringExtra(CertificateRequestor.RESULT_ALIAS);
-            if (certAlias != null) {
-                mClientCertificateSelector.setCertificate(certAlias);
-            }
-        }
+    public void onValidateStateChanged() {
+        validateFields();
     }
 }
diff --git a/src/com/android/email/activity/setup/AuthenticationFragment.java b/src/com/android/email/activity/setup/AuthenticationFragment.java
new file mode 100644
index 0000000..012f9e7
--- /dev/null
+++ b/src/com/android/email/activity/setup/AuthenticationFragment.java
@@ -0,0 +1,294 @@
+package com.android.email.activity.setup;
+
+import android.app.Activity;
+import android.app.Fragment;
+import android.content.Context;
+import android.content.Intent;
+import android.net.Uri;
+import android.os.Bundle;
+import android.text.Editable;
+import android.text.TextUtils;
+import android.text.TextWatcher;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.EditText;
+import android.widget.TextView;
+
+import com.android.email.R;
+import com.android.email.activity.UiUtilities;
+import com.android.email.service.EmailServiceUtils;
+import com.android.email.service.EmailServiceUtils.EmailServiceInfo;
+import com.android.email.view.CertificateSelector;
+import com.android.email.view.CertificateSelector.HostCallback;
+import com.android.email2.ui.MailActivityEmail;
+import com.android.emailcommon.Device;
+import com.android.emailcommon.Logging;
+import com.android.emailcommon.VendorPolicyLoader.OAuthProvider;
+import com.android.emailcommon.provider.Credential;
+import com.android.emailcommon.provider.HostAuth;
+import com.android.emailcommon.utility.CertificateRequestor;
+import com.android.mail.utils.LogUtils;
+
+import java.io.IOException;
+
+
+// FLAG:
+//  * need to handle clicking on this to clear the auth info.
+//  * need to handle getting oauth tokens
+//  * need to handle switching from password to oauth and vice versa
+
+public class AuthenticationFragment extends Fragment implements HostCallback {
+
+    private static final int CERTIFICATE_REQUEST = 0;
+
+    // Views
+    private View mImapAuthenticationView;
+    private View mImapPasswordContainer;
+    private EditText mImapPasswordView;
+    private View mImapOAuthContainer;
+    private TextView mImapOAuthView;
+    private View mImapAddAuthenticationView;
+    private View mPasswordContainer;
+    private EditText mPasswordView;
+    private CertificateSelector mClientCertificateSelector;
+    private View mDeviceIdSectionView;
+    private boolean mViewInitialized;
+
+    // Watcher
+    private TextWatcher mValidationTextWatcher;
+
+    private HostAuth mHostAuth;
+    private EmailServiceInfo mServiceInfo;
+
+    private boolean mUseOAuth;
+    private String mPassword;
+    private String mOAuthProvider;
+    private String mOAuthAccessToken;
+    private String mOAuthRefreshToken;
+
+
+    private boolean mAuthenticationValid;
+    private AuthenticationCallback mAuthenticationCallback;
+
+    public interface AuthenticationCallback {
+        public void onValidateStateChanged();
+    }
+
+    @Override
+    public void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        mViewInitialized = false;
+    }
+
+    @Override
+    public void onActivityCreated(Bundle savedInstanceState) {
+        super.onActivityCreated(savedInstanceState);
+        mClientCertificateSelector.setHostActivity(this);
+    }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        final View view = inflater.inflate(R.layout.authentication_fragment, container, false);
+        mImapAuthenticationView = UiUtilities.getView(view, R.id.imap_authentication);
+        mImapPasswordContainer = UiUtilities.getView(view, R.id.imap_password_selection);
+        mImapPasswordView = UiUtilities.getView(view, R.id.imap_account_password);
+        mImapOAuthContainer = UiUtilities.getView(view, R.id.oauth_selection);
+        mImapOAuthView = UiUtilities.getView(view, R.id.signed_in_with_service_label);
+        mImapAddAuthenticationView = UiUtilities.getView(view, R.id.authentication_selection);
+        mPasswordContainer = UiUtilities.getView(view, R.id.standard_password_selection);
+        mPasswordView = UiUtilities.getView(view, R.id.account_password);
+        mClientCertificateSelector = UiUtilities.getView(view, R.id.client_certificate_selector);
+        mDeviceIdSectionView = UiUtilities.getView(view, R.id.device_id_section);
+
+        mValidationTextWatcher = new TextWatcher() {
+            @Override
+            public void afterTextChanged(Editable s) {
+                validateFields();
+            }
+
+            @Override
+            public void beforeTextChanged(CharSequence s, int start, int count, int after) { }
+            @Override
+            public void onTextChanged(CharSequence s, int start, int before, int count) { }
+        };
+        mPasswordView.addTextChangedListener(mValidationTextWatcher);
+        mImapPasswordView.addTextChangedListener(mValidationTextWatcher);
+        mViewInitialized = true;
+        if (mHostAuth != null) {
+            loadInfo();
+        }
+        return view;
+    }
+
+    public void setAuthenticationCallback(final AuthenticationCallback host) {
+        mAuthenticationCallback = host;
+    }
+
+    public boolean getAuthValid() {
+        if (mServiceInfo == null || !mViewInitialized) {
+            // XXX this is kind of weird. We can get called in onStart() of our
+            // parent fragment, when we're still totally uninitialized.
+            // Once we get initialized, we need to call back to allow our parent
+            // to know what our state is.
+            return false;
+        }
+        if (mServiceInfo.offerOAuth) {
+            if (mUseOAuth) {
+                return mOAuthProvider != null;
+            } else {
+                return !TextUtils.isEmpty(mImapPasswordView.getText());
+            }
+        } else {
+            return !TextUtils.isEmpty(mPasswordView.getText());
+        }
+    }
+
+    public String getPassword() {
+        return getPasswordEditText().getText().toString();
+    }
+
+    public String getClientCertificate() {
+        return mClientCertificateSelector.getCertificate();
+    }
+
+    public String getOAuthProvider() {
+        // FLAG: need to handle this getting updated.
+        return mOAuthProvider;
+    }
+
+    private void validateFields() {
+        boolean valid = getAuthValid();
+        if (valid != mAuthenticationValid) {
+            mAuthenticationCallback.onValidateStateChanged();
+            mAuthenticationValid = valid;
+        }
+        // Warn (but don't prevent) if password has leading/trailing spaces
+        AccountSettingsUtils.checkPasswordSpaces(getActivity(), getPasswordEditText());
+    }
+
+    private EditText getPasswordEditText() {
+        if (mServiceInfo.offerOAuth) {
+            return mImapPasswordView;
+        } else {
+            return mPasswordView;
+        }
+    }
+
+    public void setAuthInfo(final EmailServiceInfo serviceInfo, final HostAuth hostAuth) {
+        mServiceInfo = serviceInfo;
+        mHostAuth = hostAuth;
+
+        if (mViewInitialized) {
+            loadInfo();
+            validateFields();
+        }
+    }
+
+    private void loadInfo() {
+        mServiceInfo = EmailServiceUtils.getServiceInfo(getActivity(), mHostAuth.mProtocol);
+
+        mClientCertificateSelector.setVisibility(
+                mServiceInfo.offerCerts ? View.VISIBLE : View.GONE);
+
+        mImapPasswordView.setText(null);
+        mPasswordView.setText(null);
+        if (mServiceInfo.offerOAuth) {
+            mPasswordContainer.setVisibility(View.GONE);
+            mImapAuthenticationView.setVisibility(View.VISIBLE);
+
+            final Credential cred = mHostAuth.getCredential(getActivity());
+            if (cred != null) {
+                // We're authenticated with OAuth.
+                mUseOAuth = true;
+                mOAuthProvider = cred.mProviderId;
+                mOAuthAccessToken = cred.mAccessToken;
+                mOAuthRefreshToken = cred.mRefreshToken;
+
+                final OAuthProvider provider = AccountSettingsUtils.findOAuthProvider(
+                        getActivity(), cred.mProviderId);
+                mImapPasswordContainer.setVisibility(View.GONE);
+                mImapOAuthContainer.setVisibility(View.VISIBLE);
+                mImapAddAuthenticationView.setVisibility(View.GONE);
+                mImapOAuthView.setText(getString(R.string.signed_in_with_service_label,
+                        provider.label));
+//            } else if (!TextUtils.isEmpty(hostAuth.mPassword)) {
+            } else {
+                // We're authenticated with a password.
+                mUseOAuth = false;
+                mPassword = mHostAuth.mPassword;
+
+                // XXX need to handle clicking on this to clear the password.
+                mImapPasswordContainer.setVisibility(View.VISIBLE);
+                mImapPasswordView.setText(mHostAuth.mPassword);
+                mImapOAuthContainer.setVisibility(View.GONE);
+                mImapAddAuthenticationView.setVisibility(View.GONE);
+/*            } else {
+ * XXX Allow us to choose what type of authentication when the password is unset.
+                // We have no authentication, we need to allow either password or oauth.
+                mUseOAuth = false;
+                mPassword = null;
+
+                // XXX need to handle clicking on this to go to the add auth fragment.
+                mImapPasswordContainer.setVisibility(View.GONE);
+                mImapOAuthContainer.setVisibility(View.GONE);
+                mImapAddAuthenticationView.setVisibility(View.VISIBLE); */
+            }
+        } else {
+            // We're using a POP or Exchange account, which does not offer oAuth.
+            mUseOAuth = false;
+            mPassword = mHostAuth.mPassword;
+
+            mImapAuthenticationView.setVisibility(View.GONE);
+            mPasswordContainer.setVisibility(View.VISIBLE);
+            mPasswordView.setVisibility(View.VISIBLE);
+            mPasswordView.setText(mHostAuth.mPassword);
+            if (TextUtils.isEmpty(mHostAuth.mPassword)) {
+                mPasswordView.requestFocus();
+            }
+        }
+        validateFields();
+    }
+
+    @Override
+    public void onSaveInstanceState(Bundle outState) {
+        if (Logging.DEBUG_LIFECYCLE && MailActivityEmail.DEBUG) {
+            LogUtils.d(Logging.LOG_TAG, "AuthenticationFragment onSaveInstanceState");
+        }
+        super.onSaveInstanceState(outState);
+    }
+
+    @Override
+    public void onCertificateRequested() {
+        final Intent intent = new Intent(CertificateRequestor.ACTION_REQUEST_CERT);
+        intent.setData(Uri.parse("eas://com.android.emailcommon/certrequest"));
+        startActivityForResult(intent, CERTIFICATE_REQUEST);
+    }
+
+    @Override
+    public void onActivityResult(int requestCode, int resultCode, Intent data) {
+        if (requestCode == CERTIFICATE_REQUEST && resultCode == Activity.RESULT_OK) {
+            final String certAlias = data.getStringExtra(CertificateRequestor.RESULT_ALIAS);
+            if (certAlias != null) {
+                mClientCertificateSelector.setCertificate(certAlias);
+            }
+        }
+    }
+
+
+    public void onUseSslChanged(boolean useSsl) {
+        if (mServiceInfo.offerCerts) {
+            final int mode = useSsl ? View.VISIBLE : View.GONE;
+            mClientCertificateSelector.setVisibility(mode);
+            String deviceId = "";
+            try {
+                deviceId = Device.getDeviceId(getActivity());
+            } catch (IOException e) {
+                // Not required
+            }
+            ((TextView) UiUtilities.getView(getView(), R.id.device_id)).setText(deviceId);
+            mDeviceIdSectionView.setVisibility(mode);
+        }
+    }
+}
diff --git a/src/com/android/email/service/EmailServiceUtils.java b/src/com/android/email/service/EmailServiceUtils.java
index c9b083b..488e0be 100644
--- a/src/com/android/email/service/EmailServiceUtils.java
+++ b/src/com/android/email/service/EmailServiceUtils.java
@@ -185,6 +185,7 @@
         public boolean defaultSsl;
         public boolean offerTls;
         public boolean offerCerts;
+        public boolean offerOAuth;
         public boolean usesSmtp;
         public boolean offerLocalDeletes;
         public int defaultLocalDeletes;
@@ -544,6 +545,8 @@
                         info.offerTls = ta.getBoolean(R.styleable.EmailServiceInfo_offerTls, false);
                         info.offerCerts =
                                 ta.getBoolean(R.styleable.EmailServiceInfo_offerCerts, false);
+                        info.offerOAuth =
+                                ta.getBoolean(R.styleable.EmailServiceInfo_offerOAuth, false);
                         info.offerLocalDeletes =
                             ta.getBoolean(R.styleable.EmailServiceInfo_offerLocalDeletes, false);
                         info.defaultLocalDeletes =