diff --git a/res/menu/list.xml b/res/menu/list.xml
index fbcdd47..b5a2750 100644
--- a/res/menu/list.xml
+++ b/res/menu/list.xml
@@ -37,13 +37,8 @@
         android:title="@string/menu_accounts" />
 
     <item
-        android:id="@+id/menu_import"
-        android:icon="@drawable/ic_menu_import_contact"
-        android:title="@string/importFromSim" />
-
-    <item
-        android:id="@+id/menu_export"
+        android:id="@+id/menu_import_export"
         android:icon="@drawable/ic_menu_export_contact"
-        android:title="@string/export_contact_list" />
+        android:title="@string/menu_import_export" />
 
 </menu>
diff --git a/res/menu/view.xml b/res/menu/view.xml
new file mode 100644
index 0000000..cf43802
--- /dev/null
+++ b/res/menu/view.xml
@@ -0,0 +1,51 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2009 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.
+-->
+
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:id="@+id/menu_edit"
+        android:icon="@android:drawable/ic_menu_edit"
+        android:title="@string/menu_editContact"
+        android:alphabeticShortcut="e" />
+
+    <item
+        android:id="@+id/menu_share"
+        android:icon="@android:drawable/ic_menu_share"
+        android:title="@string/menu_share"
+        android:alphabeticShortcut="s" />
+
+    <item
+        android:id="@+id/menu_options"
+        android:icon="@drawable/ic_menu_mark"
+        android:title="@string/menu_contactOptions" />
+
+    <!-- TODO: use new split/join icons -->
+    <item
+        android:id="@+id/menu_split"
+        android:icon="@android:drawable/ic_menu_share"
+        android:title="@string/menu_splitAggregate" />
+
+    <item
+        android:id="@+id/menu_join"
+        android:icon="@android:drawable/ic_menu_add"
+        android:title="@string/menu_joinAggregate" />
+
+    <item
+        android:id="@+id/menu_delete"
+        android:icon="@android:drawable/ic_menu_delete"
+        android:title="@string/menu_deleteContact" />
+
+</menu>
diff --git a/res/values/ids.xml b/res/values/ids.xml
index 48981e0..060f252 100644
--- a/res/values/ids.xml
+++ b/res/values/ids.xml
@@ -29,4 +29,6 @@
 
     <item type="id" name="dialog_sync_add" />
 
+    <item type="id" name="dialog_import_export" />
+
 </resources>
diff --git a/res/values/strings.xml b/res/values/strings.xml
index 813e212..46a4210 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -350,6 +350,9 @@
     <!-- Toast displayed when a contact is saved -->
     <string name="contactSavedToast">Contact saved.</string>
 
+    <!-- Toast displayed when saving a contact failed -->
+    <string name="contactSavedErrorToast">Error, unable to save contact changes.</string>
+
     <!-- Separator in the contact details list describing that the items below it will place a call when clicked -->
     <string name="listSeparatorCallNumber">Dial number</string>
 
@@ -692,10 +695,13 @@
     <string name="select_import_type_title">Where would you like to import contacts from?</string>
 
     <!-- Action string for selecting SIM for importing contacts -->
-    <string name="import_from_sim">SIM Card</string>
+    <string name="import_from_sim">Import from SIM card</string>
 
     <!-- Action string for selecting SD Card for importing contacts -->
-    <string name="import_from_sdcard">SD Card</string>
+    <string name="import_from_sdcard">Import from SD card</string>
+
+    <!-- Action that exports all contacts to SD Card -->
+    <string name="export_to_sdcard">Export to SD card</string>
 
     <!-- "Import one vCard file" -->
     <string name="import_one_vcard_string">Import one vCard file</string>
@@ -832,6 +838,23 @@
     <!-- The menu item to open the list of accounts -->
     <string name="menu_accounts">Accounts</string>
 
+    <!-- The menu item to bulk import or bulk export contacts from SIM card or SD card. -->
+    <string name="menu_import_export">Import/Export</string>
+
+    <!-- Dialog title when selecting the bulk operation to perform from a list. -->
+    <string name="dialog_import_export">Import/Export contacts</string>
+
+    <!-- The menu item to share the currently viewed contact -->
+    <string name="menu_share">Share</string>
+
+    <!-- Dialog title when picking the application to share a contact with. -->
+    <string name="share_via">Share contact via</string>
+
+    <!-- Toast indicating that sharing a contact has failed. -->
+    <string name="share_error">This contact cannot be shared.</string>
+
+
+
 <!-- TODO: add comments to each of these strings to prepare for translation -->
 <string name="nameLabelsGroup">Name</string>
 <string name="nicknameLabelsGroup">Nickname</string>
@@ -863,14 +886,6 @@
 <string name="type_radio">Radio</string>
 <string name="type_assistant">Assistant</string>
 
-<string name="type_email_1">Email 1</string>
-<string name="type_email_2">Email 2</string>
-<string name="type_email_3">Email 3</string>
-
-<string name="type_im_1">IM 1</string>
-<string name="type_im_2">IM 2</string>
-<string name="type_im_3">IM 3</string>
-
 <string name="type_im_aim">AIM</string>
 <string name="type_im_msn">Windows Live</string>
 <string name="type_im_yahoo">Yahoo</string>
@@ -953,9 +968,6 @@
 <string name="email_other">Email other</string>
 <string name="email_custom">Email <xliff:g id="custom">%s</xliff:g></string>
 
-<string name="email_1">Email 1</string>
-<string name="email_2">Email 2</string>
-<string name="email_3">Email 3</string>
 <string name="email">Email</string>
 
 
@@ -975,11 +987,6 @@
 <string name="chat_jabber">Chat using Jabber</string>
 <string name="chat_other">Chat</string>
 
-<string name="im_1">Chat 1</string>
-<string name="im_2">Chat 2</string>
-<string name="im_3">Chat 3</string>
-<string name="im">Chat</string>
-
 <string name="postal_street">Street</string>
 <string name="postal_pobox">PO box</string>
 <string name="postal_neighborhood">Neighborhood</string>
diff --git a/src/com/android/contacts/ContactsListActivity.java b/src/com/android/contacts/ContactsListActivity.java
index 7ce99f3..d81e20c 100644
--- a/src/com/android/contacts/ContactsListActivity.java
+++ b/src/com/android/contacts/ContactsListActivity.java
@@ -19,9 +19,11 @@
 import com.android.contacts.ui.DisplayGroupsActivity;
 import com.android.contacts.ui.FastTrackWindow;
 import com.android.contacts.ui.DisplayGroupsActivity.Prefs;
+import com.android.contacts.util.Constants;
 
 import android.app.Activity;
 import android.app.AlertDialog;
+import android.app.Dialog;
 import android.app.ListActivity;
 import android.app.SearchManager;
 import android.content.AsyncQueryHandler;
@@ -61,15 +63,19 @@
 import android.provider.ContactsContract.Intents;
 import android.provider.ContactsContract.Presence;
 import android.provider.ContactsContract.RawContacts;
+import android.provider.ContactsContract.CommonDataKinds.Email;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.provider.ContactsContract.CommonDataKinds.Photo;
 import android.provider.ContactsContract.CommonDataKinds.StructuredPostal;
 import android.provider.ContactsContract.Contacts.AggregationSuggestions;
+import android.provider.ContactsContract.Intents.Insert;
 import android.provider.ContactsContract.Intents.UI;
+import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.SparseArray;
 import android.view.ContextMenu;
+import android.view.ContextThemeWrapper;
 import android.view.Gravity;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
@@ -83,6 +89,7 @@
 import android.widget.AbsListView;
 import android.widget.AdapterView;
 import android.widget.AlphabetIndexer;
+import android.widget.ArrayAdapter;
 import android.widget.Filter;
 import android.widget.ImageView;
 import android.widget.ListView;
@@ -196,8 +203,7 @@
     /** Run a search query */
     static final int MODE_QUERY = 60 | MODE_MASK_NO_FILTER;
     /** Run a search query in PICK mode, but that still launches to VIEW */
-    // TODO Remove this mode if we decided it is really not needed.
-    /*static final int MODE_QUERY_PICK_TO_VIEW = 65 | MODE_MASK_NO_FILTER | MODE_MASK_PICKER;*/
+    static final int MODE_QUERY_PICK_TO_VIEW = 65 | MODE_MASK_NO_FILTER | MODE_MASK_PICKER;
 
     /** Show join suggestions followed by an A-Z list */
     static final int MODE_JOIN_CONTACT = 70 | MODE_MASK_PICKER | MODE_MASK_NO_PRESENCE
@@ -209,12 +215,6 @@
     static final String NAME_COLUMN = Contacts.DISPLAY_NAME;
     //static final String SORT_STRING = People.SORT_STRING;
 
-    static final String[] CONTACTS_PROJECTION = new String[] {
-        Contacts._ID, // 0
-        Contacts.DISPLAY_NAME, // 1
-        Contacts.STARRED, //2
-    };
-
     static final String[] CONTACTS_SUMMARY_PROJECTION = new String[] {
         Contacts._ID, // 0
         Contacts.DISPLAY_NAME, // 1
@@ -223,6 +223,7 @@
         Presence.PRESENCE_STATUS, //4
         Contacts.PHOTO_ID, //5
         Contacts.HAS_PHONE_NUMBER, //6
+        Contacts.LOOKUP_KEY, //7
     };
     static final String[] LEGACY_PEOPLE_PROJECTION = new String[] {
         People._ID, // 0
@@ -231,13 +232,14 @@
         PeopleColumns.TIMES_CONTACTED, //3
         People.PRESENCE_STATUS, //4
     };
-    static final int ID_COLUMN_INDEX = 0;
+    static final int SUMMARY_ID_COLUMN_INDEX = 0;
     static final int SUMMARY_NAME_COLUMN_INDEX = 1;
     static final int SUMMARY_STARRED_COLUMN_INDEX = 2;
     static final int SUMMARY_TIMES_CONTACTED_COLUMN_INDEX = 3;
     static final int SUMMARY_PRESENCE_STATUS_COLUMN_INDEX = 4;
     static final int SUMMARY_PHOTO_ID_COLUMN_INDEX = 5;
     static final int SUMMARY_HAS_PHONE_COLUMN_INDEX = 6;
+    static final int SUMMARY_LOOKUP_KEY = 7;
 
     static final String[] PHONES_PROJECTION = new String[] {
         Data._ID, //0
@@ -296,13 +298,6 @@
 //    private boolean mDisplayAll;
     private boolean mDisplayOnlyPhones;
 
-    /**
-     * Cursor row index that holds reference back to {@link People#_ID}, such as
-     * {@link ContactMethods#PERSON_ID}. Used when responding to a
-     * {@link Intent#ACTION_SEARCH} in mode {@link #MODE_QUERY_PICK_TO_VIEW}.
-     */
-    private int mQueryPersonIdIndex;
-
     private Uri mGroupUri;
 
     private long mQueryAggregateId;
@@ -314,9 +309,6 @@
     private boolean mListHasFocus;
 
     private String mShortcutAction;
-    private boolean mDefaultMode = false;
-
-    private boolean mCreateShortcut;
 
     /**
      * Internal query type when in mode {@link #MODE_QUERY_PICK_TO_VIEW}.
@@ -335,31 +327,6 @@
 
     private Handler mHandler = new Handler();
 
-    private class ImportTypeSelectedListener implements DialogInterface.OnClickListener {
-        public static final int IMPORT_FROM_SIM = 0;
-        public static final int IMPORT_FROM_SDCARD = 1;
-
-        private int mIndex;
-
-        public ImportTypeSelectedListener() {
-            mIndex = IMPORT_FROM_SIM;
-        }
-
-        public void onClick(DialogInterface dialog, int which) {
-            if (which == DialogInterface.BUTTON_POSITIVE) {
-                if (mIndex == IMPORT_FROM_SIM) {
-                    doImportFromSim();
-                } else {
-                    doImportFromSDCard();
-                }
-            } else if (which == DialogInterface.BUTTON_NEGATIVE) {
-
-            } else {
-                mIndex = which;
-            }
-        }
-    }
-
     private static final String CLAUSE_ONLY_VISIBLE = Contacts.IN_VISIBLE_GROUP + "=1";
     private static final String CLAUSE_ONLY_PHONES = Contacts.HAS_PHONE_NUMBER + "=1";
 
@@ -449,7 +416,6 @@
                 mShortcutAction = Intent.ACTION_VIEW;
                 setTitle(R.string.shortcutActivityTitle);
             }
-            mCreateShortcut = true;
         } else if (Intent.ACTION_GET_CONTENT.equals(action)) {
             final String type = intent.resolveType(this);
             if (Contacts.CONTENT_ITEM_TYPE.equals(type)) {
@@ -479,7 +445,7 @@
             }
 
             // See if search request has extras to specify query
-            /*if (intent.hasExtra(Insert.EMAIL)) {
+            if (intent.hasExtra(Insert.EMAIL)) {
                 mMode = MODE_QUERY_PICK_TO_VIEW;
                 mQueryMode = QUERY_MODE_MAILTO;
                 mQueryData = intent.getStringExtra(Insert.EMAIL);
@@ -491,7 +457,6 @@
                 // Otherwise handle the more normal search case
                 mMode = MODE_QUERY;
             }
-            */
             mMode = MODE_QUERY;
 
         // Since this is the filter activity it receives all intents
@@ -762,10 +727,6 @@
     public boolean onPrepareOptionsMenu(Menu menu) {
         final boolean defaultMode = (mMode == MODE_DEFAULT);
         menu.findItem(R.id.menu_display_groups).setVisible(defaultMode);
-
-        final boolean allowExport = getResources().getBoolean(R.bool.config_allow_export_to_sdcard);
-        menu.findItem(R.id.menu_export).setVisible(allowExport);
-
         return true;
     }
 
@@ -786,26 +747,8 @@
                 startActivity(intent);
                 return true;
             }
-            case R.id.menu_import: {
-                if (getResources().getBoolean(R.bool.config_allow_import_from_sdcard)) {
-                    ImportTypeSelectedListener listener =
-                            new ImportTypeSelectedListener();
-                    AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this)
-                            .setTitle(R.string.select_import_type_title)
-                            .setPositiveButton(android.R.string.ok, listener)
-                            .setNegativeButton(android.R.string.cancel, null);
-                    dialogBuilder.setSingleChoiceItems(new String[] {
-                            getString(R.string.import_from_sim),
-                            getString(R.string.import_from_sdcard)},
-                            ImportTypeSelectedListener.IMPORT_FROM_SIM, listener);
-                    dialogBuilder.show();
-                } else {
-                    doImportFromSim();
-                }
-                return true;
-            }
-            case R.id.menu_export: {
-                handleExportContacts();
+            case R.id.menu_import_export: {
+                showDialog(R.id.dialog_import_export);
                 return true;
             }
             case R.id.menu_accounts: {
@@ -820,6 +763,82 @@
         return false;
     }
 
+    @Override
+    protected Dialog onCreateDialog(int id) {
+        switch (id) {
+            case R.id.dialog_import_export: {
+                return createImportExportDialog();
+            }
+        }
+        return super.onCreateDialog(id);
+    }
+
+    /**
+     * Create a {@link Dialog} that allows the user to pick from a bulk import
+     * or bulk export task across all contacts.
+     */
+    private Dialog createImportExportDialog() {
+        // Wrap our context to inflate list items using correct theme
+        final Context dialogContext = new ContextThemeWrapper(this, android.R.style.Theme_Light);
+        final Resources res = dialogContext.getResources();
+        final LayoutInflater dialogInflater = (LayoutInflater)dialogContext
+                .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
+
+        // Adapter that shows a list of string resources
+        final ArrayAdapter<Integer> adapter = new ArrayAdapter<Integer>(this,
+                android.R.layout.simple_list_item_1) {
+            @Override
+            public View getView(int position, View convertView, ViewGroup parent) {
+                if (convertView == null) {
+                    convertView = dialogInflater.inflate(android.R.layout.simple_list_item_1,
+                            parent, false);
+                }
+
+                final int resId = this.getItem(position);
+                ((TextView)convertView).setText(resId);
+                return convertView;
+            }
+        };
+
+        if (TelephonyManager.getDefault().hasIccCard()) {
+            adapter.add(R.string.import_from_sim);
+        }
+        if (res.getBoolean(R.bool.config_allow_import_from_sdcard)) {
+            adapter.add(R.string.import_from_sdcard);
+        }
+        if (res.getBoolean(R.bool.config_allow_export_to_sdcard)) {
+            adapter.add(R.string.export_to_sdcard);
+        }
+
+        final DialogInterface.OnClickListener clickListener = new DialogInterface.OnClickListener() {
+            public void onClick(DialogInterface dialog, int which) {
+                dialog.dismiss();
+
+                final int resId = adapter.getItem(which);
+                switch (resId) {
+                    case R.string.import_from_sim: {
+                        doImportFromSim();
+                        break;
+                    }
+                    case R.string.import_from_sdcard: {
+                        doImportFromSdCard();
+                        break;
+                    }
+                    case R.string.export_to_sdcard: {
+                        doExportToSdCard();
+                        break;
+                    }
+                }
+            }
+        };
+
+        final AlertDialog.Builder builder = new AlertDialog.Builder(this);
+        builder.setTitle(R.string.dialog_import_export);
+        builder.setNegativeButton(android.R.string.cancel, null);
+        builder.setSingleChoiceItems(adapter, -1, clickListener);
+        return builder.create();
+    }
+
     private void doImportFromSim() {
         Intent importIntent = new Intent(Intent.ACTION_VIEW);
         importIntent.setType("vnd.android.cursor.item/sim-contact");
@@ -827,12 +846,12 @@
         startActivity(importIntent);
     }
 
-    private void doImportFromSDCard() {
+    private void doImportFromSdCard() {
         Intent intent = new Intent(this, ImportVCardActivity.class);
         startActivity(intent);
     }
 
-    private void handleExportContacts() {
+    private void doExportToSdCard() {
         VCardExporter exporter = new VCardExporter(ContactsListActivity.this, mHandler);
         exporter.startExportVCardToSdCard();
     }
@@ -948,26 +967,16 @@
                 // Toggle the star
                 ContentValues values = new ContentValues(1);
                 values.put(Contacts.STARRED, cursor.getInt(SUMMARY_STARRED_COLUMN_INDEX) == 0 ? 1 : 0);
-                Uri aggUri = ContentUris.withAppendedId(Contacts.CONTENT_URI,
-                        cursor.getInt(ID_COLUMN_INDEX));
-                getContentResolver().update(aggUri, values, null, null);
+                final Uri selectedUri = this.getContactUri(info.position);
+                getContentResolver().update(selectedUri, values, null, null);
                 return true;
             }
 
-            /* case MENU_ITEM_DELETE: {
-                // Get confirmation
-                Uri uri = ContentUris.withAppendedId(People.CONTENT_URI,
-                        cursor.getLong(ID_COLUMN_INDEX));
-                //TODO make this dialog persist across screen rotations
-                new AlertDialog.Builder(ContactsListActivity.this)
-                    .setTitle(R.string.deleteConfirmation_title)
-                    .setIcon(android.R.drawable.ic_dialog_alert)
-                    .setMessage(R.string.deleteConfirmation)
-                    .setNegativeButton(android.R.string.cancel, null)
-                    .setPositiveButton(android.R.string.ok, new DeleteClickListener(uri))
-                    .show();
+            case MENU_ITEM_DELETE: {
+                final Uri selectedUri = getContactUri(info.position);
+                doContactDelete(selectedUri);
                 return true;
-            } */
+            }
         }
 
         return super.onContextItemSelected(item);
@@ -991,20 +1000,10 @@
                 break;
             }
             case KeyEvent.KEYCODE_DEL: {
-                Object o = getListView().getSelectedItem();
-                if (o != null) {
-                    Cursor cursor = (Cursor) o;
-                    Uri uri = ContentUris.withAppendedId(Contacts.CONTENT_URI,
-                            cursor.getLong(ID_COLUMN_INDEX));
-                    //TODO make this dialog persist across screen rotations
-                    new AlertDialog.Builder(ContactsListActivity.this)
-                        .setTitle(R.string.deleteConfirmation_title)
-                        .setIcon(android.R.drawable.ic_dialog_alert)
-                        .setMessage(R.string.deleteConfirmation)
-                        .setNegativeButton(android.R.string.cancel, null)
-                        .setPositiveButton(android.R.string.ok, new DeleteClickListener(uri))
-                        .setCancelable(false)
-                        .show();
+                final int position = getListView().getSelectedItemPosition();
+                if (position != ListView.INVALID_POSITION) {
+                    final Uri selectedUri = getContactUri(position);
+                    doContactDelete(selectedUri);
                     return true;
                 }
                 break;
@@ -1014,6 +1013,19 @@
         return super.onKeyDown(keyCode, event);
     }
 
+    /**
+     * Prompt the user before deleting the given {@link Contacts} entry.
+     */
+    protected void doContactDelete(Uri contactUri) {
+        new AlertDialog.Builder(ContactsListActivity.this)
+            .setTitle(R.string.deleteConfirmation_title)
+            .setIcon(android.R.drawable.ic_dialog_alert)
+            .setMessage(R.string.deleteConfirmation)
+            .setNegativeButton(android.R.string.cancel, null)
+            .setPositiveButton(android.R.string.ok, new DeleteClickListener(contactUri))
+            .show();
+    }
+
     @Override
     protected void onListItemClick(ListView l, View v, int position, long id) {
         // Hide soft keyboard, if visible
@@ -1028,8 +1040,8 @@
                 intent = new Intent(Intent.ACTION_INSERT, Contacts.CONTENT_URI);
             } else {
                 // Edit
-                intent = new Intent(Intent.ACTION_EDIT,
-                        ContentUris.withAppendedId(Contacts.CONTENT_URI, id));
+                final Uri uri = getSelectedUri(position);
+                intent = new Intent(Intent.ACTION_EDIT, uri);
             }
             intent.setFlags(Intent.FLAG_ACTIVITY_FORWARD_RESULT);
             final Bundle extras = getIntent().getExtras();
@@ -1039,24 +1051,18 @@
             startActivity(intent);
             finish();
         } else if (id != -1) {
-            Uri uri = getPickerResultUri(id);
+            final Uri uri = getSelectedUri(position);
             if ((mMode & MODE_MASK_PICKER) == 0) {
-                Intent intent = new Intent(Intent.ACTION_VIEW,
-                        ContentUris.withAppendedId(Contacts.CONTENT_URI, id));
+                final Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                 startActivityForResult(intent, SUBACTIVITY_VIEW_CONTACT);
             } else if (mMode == MODE_JOIN_CONTACT) {
                 returnPickerResult(null, null, uri, id);
-            }
-
-            /*else if (mMode == MODE_QUERY_PICK_TO_VIEW) {
+            } else if (mMode == MODE_QUERY_PICK_TO_VIEW) {
                 // Started with query that should launch to view contact
-                Cursor c = (Cursor) mAdapter.getItem(position);
-                long personId = c.getLong(mQueryPersonIdIndex);
-                Intent intent = new Intent(Intent.ACTION_VIEW,
-                        ContentUris.withAppendedId(People.CONTENT_URI, personId));
+                final Intent intent = new Intent(Intent.ACTION_VIEW, uri);
                 startActivity(intent);
                 finish();
-            }*/ else if (mMode == MODE_PICK_CONTACT
+            } else if (mMode == MODE_PICK_CONTACT
                     || mMode == MODE_PICK_OR_CREATE_CONTACT
                     || mMode == MODE_LEGACY_PICK_PERSON
                     || mMode == MODE_LEGACY_PICK_OR_CREATE_PERSON) {
@@ -1083,7 +1089,7 @@
             }
         } else if ((mMode & MODE_MASK_CREATE_NEW) == MODE_MASK_CREATE_NEW
                 && position == 0) {
-            // Hook this up to new edit contact activity (bug 2092559)
+            // TODO: Hook this up to new edit contact activity (bug 2092559)
             /*Intent newContact = new Intent(Intents.Insert.ACTION, People.CONTENT_URI);
             startActivityForResult(newContact, SUBACTIVITY_NEW_CONTACT);*/
         } else {
@@ -1091,6 +1097,10 @@
         }
     }
 
+    /**
+     * @param uri In most cases, this should be a lookup {@link Uri}, possibly
+     *            generated through {@link Contacts#getLookupUri(long, String)}.
+     */
     private void returnPickerResult(Cursor c, String name, Uri uri, long id) {
         final Intent intent = new Intent();
 
@@ -1098,8 +1108,7 @@
             Intent shortcutIntent;
             if (Intent.ACTION_VIEW.equals(mShortcutAction)) {
                 // This is a simple shortcut to view a contact.
-                Uri lookupUri = Contacts.getLookupUri(getContentResolver(), uri);
-                shortcutIntent = new Intent(mShortcutAction, lookupUri);
+                shortcutIntent = new Intent(mShortcutAction, uri);
                 final Bitmap icon = loadContactPhoto(id, null);
                 if (icon != null) {
                     intent.putExtra(Intent.EXTRA_SHORTCUT_ICON, icon);
@@ -1115,10 +1124,10 @@
                 String scheme;
                 int resid;
                 if (Intent.ACTION_CALL.equals(mShortcutAction)) {
-                    scheme = "tel";
+                    scheme = Constants.SCHEME_TEL;
                     resid = R.drawable.badge_action_call;
                 } else {
-                    scheme = "smsto";
+                    scheme = Constants.SCHEME_SMSTO;
                     resid = R.drawable.badge_action_sms;
                 }
 
@@ -1272,19 +1281,54 @@
             case MODE_LEGACY_PICK_POSTAL: {
                 return ContactMethods.CONTENT_URI;
             }
+            case MODE_QUERY_PICK_TO_VIEW: {
+                if (mQueryMode == QUERY_MODE_MAILTO) {
+                    return Uri.withAppendedPath(Email.CONTENT_FILTER_URI, Uri.encode(mQueryData));
+                } else if (mQueryMode == QUERY_MODE_TEL) {
+                    return Uri.withAppendedPath(Phone.CONTENT_FILTER_URI, Uri.encode(mQueryData));
+                }
+            }
+        }
+        return null;
+    }
+
+    /**
+     * Build the {@link Contacts#CONTENT_LOOKUP_URI} for the given
+     * {@link ListView} position, using {@link #mAdapter}.
+     */
+    private Uri getContactUri(int position) {
+        if (position == ListView.INVALID_POSITION) {
+            throw new IllegalArgumentException("Position not in list bounds");
+        }
+
+        final Cursor cursor = (Cursor)mAdapter.getItem(position);
+        switch(mMode) {
+            case MODE_LEGACY_PICK_PERSON:
+            case MODE_LEGACY_PICK_OR_CREATE_PERSON: {
+                final long personId = cursor.getLong(SUMMARY_ID_COLUMN_INDEX);
+                return ContentUris.withAppendedId(People.CONTENT_URI, personId);
+            }
+
             default: {
-                return null;
+                // Build and return soft, lookup reference
+                final long contactId = cursor.getLong(SUMMARY_ID_COLUMN_INDEX);
+                final String lookupKey = cursor.getString(SUMMARY_LOOKUP_KEY);
+                return Contacts.getLookupUri(contactId, lookupKey);
             }
         }
     }
 
-    Uri getPickerResultUri(long id) {
+    /**
+     * Build the {@link Uri} for the given {@link ListView} position, which can
+     * be used as result when in {@link #MODE_MASK_PICKER} mode.
+     */
+    private Uri getSelectedUri(int position) {
+        if (position == ListView.INVALID_POSITION) {
+            throw new IllegalArgumentException("Position not in list bounds");
+        }
+
+        final long id = mAdapter.getItemId(position);
         switch(mMode) {
-            case MODE_PICK_CONTACT:
-            case MODE_PICK_OR_CREATE_CONTACT:
-            case MODE_JOIN_CONTACT: {
-                return ContentUris.withAppendedId(Contacts.CONTENT_URI, id);
-            }
             case MODE_LEGACY_PICK_PERSON:
             case MODE_LEGACY_PICK_OR_CREATE_PERSON: {
                 return ContentUris.withAppendedId(People.CONTENT_URI, id);
@@ -1302,16 +1346,14 @@
                 return ContentUris.withAppendedId(ContactMethods.CONTENT_URI, id);
             }
             default: {
-                return null;
+                return getContactUri(position);
             }
         }
     }
 
     String[] getProjectionForQuery() {
         switch(mMode) {
-            case MODE_JOIN_CONTACT: {
-                return CONTACTS_PROJECTION;
-            }
+            case MODE_JOIN_CONTACT:
             case MODE_STREQUENT:
             case MODE_FREQUENT:
             case MODE_STARRED:
@@ -1339,6 +1381,14 @@
             case MODE_LEGACY_PICK_POSTAL: {
                 return LEGACY_POSTALS_PROJECTION;
             }
+            case MODE_QUERY_PICK_TO_VIEW: {
+                if (mQueryMode == QUERY_MODE_MAILTO) {
+                    return CONTACTS_SUMMARY_PROJECTION;
+                } else if (mQueryMode == QUERY_MODE_TEL) {
+                    return PHONES_PROJECTION;
+                }
+                break;
+            }
         }
 
         // Default to normal aggregate projection
@@ -1444,26 +1494,11 @@
                 break;
             }
 
-            /*
             case MODE_QUERY_PICK_TO_VIEW: {
-                if (mQueryMode == QUERY_MODE_MAILTO) {
-                    // Find all contacts with the given search string as E-mail.
-                    Uri uri = Uri.withAppendedPath(Contacts.CONTENT_FILTER_EMAIL_URI,
-                            Uri.encode(mQueryData));
-                    mQueryHandler.startQuery(QUERY_TOKEN, null,
-                            uri, SIMPLE_CONTACTS_PROJECTION, null, null,
-                            getSortOrder(CONTACTS_PROJECTION));
-
-                } else if (mQueryMode == QUERY_MODE_TEL) {
-                    mQueryAggIdIndex = PHONES_PERSON_ID_INDEX;
-                    mQueryHandler.startQuery(QUERY_TOKEN, null,
-                            Uri.withAppendedPath(Phones.CONTENT_FILTER_URL, mQueryData),
-                            PHONES_PROJECTION, null, null,
-                            getSortOrder(PHONES_PROJECTION));
-                }
+                mQueryHandler.startQuery(QUERY_TOKEN, null, uri, projection, null, null,
+                        getSortOrder(projection));
                 break;
             }
-            */
 
             case MODE_STARRED:
                 mQueryHandler.startQuery(QUERY_TOKEN, null, uri,
@@ -1595,15 +1630,17 @@
                     return false;
                 }
 
-                String phone = ContactsUtils.querySuperPrimaryPhone(getContentResolver(), cursor.
-                        getLong(ID_COLUMN_INDEX));
+                // TODO: transition to use lookup instead of strong id
+                final long contactId = cursor.getLong(SUMMARY_ID_COLUMN_INDEX);
+                final String phone = ContactsUtils.querySuperPrimaryPhone(getContentResolver(),
+                        contactId);
                 if (phone == null) {
                     signalError();
                     return false;
                 }
 
                 Intent intent = new Intent(Intent.ACTION_CALL_PRIVILEGED,
-                        Uri.fromParts("tel", phone, null));
+                        Uri.fromParts(Constants.SCHEME_TEL, phone, null));
                 startActivity(intent);
                 return true;
             }
@@ -1689,9 +1726,9 @@
                 } else {
                     activity.mAdapter.setSuggestionsCursor(null);
                 }
-                startQuery(QUERY_TOKEN, null, Contacts.CONTENT_URI, CONTACTS_PROJECTION,
+                startQuery(QUERY_TOKEN, null, Contacts.CONTENT_URI, CONTACTS_SUMMARY_PROJECTION,
                         Contacts._ID + " != " + mAggregateId, null,
-                        getSortOrder(CONTACTS_PROJECTION));
+                        getSortOrder(CONTACTS_SUMMARY_PROJECTION));
 
             } else {
                 cursor.close();
diff --git a/src/com/android/contacts/ContactsUtils.java b/src/com/android/contacts/ContactsUtils.java
index dd0abd4..7537d30 100644
--- a/src/com/android/contacts/ContactsUtils.java
+++ b/src/com/android/contacts/ContactsUtils.java
@@ -19,6 +19,7 @@
 
 import com.android.contacts.model.ContactsSource;
 import com.android.contacts.ui.FastTrackWindow;
+import com.android.contacts.util.Constants;
 
 import java.io.ByteArrayInputStream;
 
@@ -69,9 +70,8 @@
         int colType;
         int colLabel;
 
-        // TODO: move the SMS mime-type to a central location
         if (Phone.CONTENT_ITEM_TYPE.equals(mimeType)
-                || FastTrackWindow.MIME_SMS_ADDRESS.equals(mimeType)) {
+                || Constants.MIME_SMS_ADDRESS.equals(mimeType)) {
             // Reset to phone mimetype so we generate a label for SMS case
             mimeType = Phone.CONTENT_ITEM_TYPE;
             colType = cursor.getColumnIndex(Phone.TYPE);
@@ -266,7 +266,7 @@
         String phone = null;
         try {
             Uri baseUri = ContentUris.withAppendedId(Contacts.CONTENT_URI, contactId);
-            Uri dataUri = Uri.withAppendedPath(baseUri, "data");
+            Uri dataUri = Uri.withAppendedPath(baseUri, Contacts.Data.CONTENT_DIRECTORY);
 
             c = cr.query(dataUri,
                     new String[] {Phone.NUMBER},
diff --git a/src/com/android/contacts/ShowOrCreateActivity.java b/src/com/android/contacts/ShowOrCreateActivity.java
index c11240e..ed8568a 100755
--- a/src/com/android/contacts/ShowOrCreateActivity.java
+++ b/src/com/android/contacts/ShowOrCreateActivity.java
@@ -17,6 +17,7 @@
 package com.android.contacts;
 
 import com.android.contacts.ui.FastTrackWindow;
+import com.android.contacts.util.Constants;
 import com.android.contacts.util.NotifyingAsyncQueryHandler;
 
 import android.app.Activity;
@@ -65,9 +66,6 @@
         RawContacts.CONTACT_ID,
     };
 
-    static final String SCHEME_MAILTO = "mailto";
-    static final String SCHEME_TEL = "tel";
-
     static final int AGGREGATE_ID_INDEX = 0;
 
     static final int QUERY_TOKEN = 42;
@@ -119,13 +117,13 @@
         mCreateForce = intent.getBooleanExtra(Intents.EXTRA_FORCE_CREATE, false);
 
         // Handle specific query request
-        if (SCHEME_MAILTO.equals(scheme)) {
+        if (Constants.SCHEME_MAILTO.equals(scheme)) {
             mCreateExtras.putString(Intents.Insert.EMAIL, ssp);
 
             Uri uri = Uri.withAppendedPath(Email.CONTENT_FILTER_EMAIL_URI, Uri.encode(ssp));
             mQueryHandler.startQuery(QUERY_TOKEN, null, uri, CONTACTS_PROJECTION, null, null, null);
 
-        } else if (SCHEME_TEL.equals(scheme)) {
+        } else if (Constants.SCHEME_TEL.equals(scheme)) {
             mCreateExtras.putString(Intents.Insert.PHONE, ssp);
 
             Uri uri = Uri.withAppendedPath(PhoneLookup.CONTENT_FILTER_URI, ssp);
diff --git a/src/com/android/contacts/TypePrecedence.java b/src/com/android/contacts/TypePrecedence.java
index 5b51ba6..62520a0 100644
--- a/src/com/android/contacts/TypePrecedence.java
+++ b/src/com/android/contacts/TypePrecedence.java
@@ -16,8 +16,10 @@
 
 package com.android.contacts;
 
-import com.android.contacts.ui.FastTrackWindow;
+import com.android.contacts.model.EntityModifier;
+import com.android.contacts.util.Constants;
 
+import android.accounts.Account;
 import android.provider.ContactsContract.CommonDataKinds.Email;
 import android.provider.ContactsContract.CommonDataKinds.Im;
 import android.provider.ContactsContract.CommonDataKinds.Organization;
@@ -25,9 +27,13 @@
 import android.provider.ContactsContract.CommonDataKinds.StructuredPostal;
 
 /**
- * This class contains utility functions for determining the precedence of different types
- * associated with contact data items.
+ * This class contains utility functions for determining the precedence of
+ * different types associated with contact data items.
+ *
+ * @deprecated use {@link EntityModifier#getTypePrecedence} instead, since this
+ *             list isn't {@link Account} based.
  */
+@Deprecated
 public final class TypePrecedence {
 
     /* This utility class has cannot be instantiated.*/
@@ -74,6 +80,7 @@
      * @param type The integer type as defined in {@Link ContactsContract#CommonDataKinds}.
      * @return The integer precedence, where 1 is the highest.
      */
+    @Deprecated
     public static int getTypePrecedence(String mimetype, int type) {
         int[] typePrecedence = getTypePrecedenceList(mimetype);
         if (typePrecedence == null) {
@@ -88,10 +95,11 @@
         return typePrecedence.length;
     }
 
+    @Deprecated
     private static int[] getTypePrecedenceList(String mimetype) {
         if (mimetype.equals(Phone.CONTENT_ITEM_TYPE)) {
             return TYPE_PRECEDENCE_PHONES;
-        } else if (mimetype.equals(FastTrackWindow.MIME_SMS_ADDRESS)) {
+        } else if (mimetype.equals(Constants.MIME_SMS_ADDRESS)) {
             return TYPE_PRECEDENCE_PHONES;
         } else if (mimetype.equals(Email.CONTENT_ITEM_TYPE)) {
             return TYPE_PRECEDENCE_EMAIL;
diff --git a/src/com/android/contacts/ViewContactActivity.java b/src/com/android/contacts/ViewContactActivity.java
index bbba2c2..ddd0abb 100644
--- a/src/com/android/contacts/ViewContactActivity.java
+++ b/src/com/android/contacts/ViewContactActivity.java
@@ -20,10 +20,11 @@
 import com.android.contacts.ScrollingTabWidget.OnTabSelectionChangedListener;
 import com.android.contacts.SplitAggregateView.OnContactSelectedListener;
 import com.android.contacts.model.ContactsSource;
+import com.android.contacts.model.EntityModifier;
 import com.android.contacts.model.Sources;
 import com.android.contacts.model.ContactsSource.DataKind;
-import com.android.contacts.model.HardCodedSources.SimpleInflater;
 import com.android.contacts.ui.FastTrackWindow;
+import com.android.contacts.util.Constants;
 import com.android.contacts.util.NotifyingAsyncQueryHandler;
 import com.android.internal.telephony.ITelephony;
 import com.android.internal.widget.ContactHeaderWidget;
@@ -42,20 +43,15 @@
 import android.content.Intent;
 import android.content.DialogInterface.OnClickListener;
 import android.content.Entity.NamedContentValues;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.content.res.Resources;
 import android.database.ContentObserver;
 import android.database.Cursor;
-import android.database.DatabaseUtils;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.RemoteException;
 import android.os.ServiceManager;
-import android.provider.BaseColumns;
-import android.provider.ContactsContract;
 import android.provider.ContactsContract.AggregationExceptions;
 import android.provider.ContactsContract.CommonDataKinds;
 import android.provider.ContactsContract.Contacts;
@@ -64,6 +60,7 @@
 import android.provider.ContactsContract.RawContacts;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.telephony.PhoneNumberUtils;
+import android.telephony.TelephonyManager;
 import android.text.TextUtils;
 import android.util.Log;
 import android.util.SparseArray;
@@ -72,6 +69,7 @@
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.Menu;
+import android.view.MenuInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
@@ -85,7 +83,6 @@
 import android.widget.Toast;
 
 import java.util.ArrayList;
-import java.util.Iterator;
 
 /**
  * Displays the details of a specific contact.
@@ -95,7 +92,6 @@
         AdapterView.OnItemClickListener, NotifyingAsyncQueryHandler.AsyncQueryListener,
         OnTabSelectionChangedListener {
     private static final String TAG = "ViewContact";
-    private static final String SHOW_BARCODE_INTENT = "com.google.zxing.client.android.ENCODE";
 
     public static final String RAW_CONTACT_ID_EXTRA = "rawContactIdExtra";
 
@@ -106,13 +102,7 @@
     private static final int REQUEST_JOIN_CONTACT = 1;
     private static final int REQUEST_EDIT_CONTACT = 2;
 
-    public static final int MENU_ITEM_EDIT = 1;
-    public static final int MENU_ITEM_DELETE = 2;
     public static final int MENU_ITEM_MAKE_DEFAULT = 3;
-    public static final int MENU_ITEM_SHOW_BARCODE = 4;
-    public static final int MENU_ITEM_SPLIT_AGGREGATE = 5;
-    public static final int MENU_ITEM_JOIN_AGGREGATE = 6;
-    public static final int MENU_ITEM_OPTIONS = 7;
 
     protected Uri mLookupUri;
     private Uri mUri;
@@ -288,12 +278,9 @@
 
     // TAB CODE //
     /**
-     * Adds a tab for each {@link RawContact} associated with this contact.
+     * Adds a tab for each {@link RawContacts} associated with this contact.
      * Override this method if you want to additional tabs and/or different
      * tabs for your activity.
-     *
-     * @param entities An {@link ArrayList} of {@link Entity}s of all the RawContacts
-     * associated with the contact being displayed.
      */
     protected void bindTabs() {
         if (mEntities.size() > 1) {
@@ -322,7 +309,7 @@
     /**
      * Add a tab to be displayed in the {@link ScrollingTabWidget}.
      *
-     * @param contactId The contact id associated with the tab.
+     * @param rawContactId The contact id associated with the tab.
      * @param view A view to use as the tab indicator.
      */
     protected void addTab(long rawContactId, View view) {
@@ -486,54 +473,28 @@
 
     @Override
     public boolean onCreateOptionsMenu(Menu menu) {
-        menu.add(0, MENU_ITEM_DELETE, 0, R.string.menu_deleteContact)
-                .setIcon(android.R.drawable.ic_menu_delete);
-        menu.add(0, MENU_ITEM_SPLIT_AGGREGATE, 0, R.string.menu_splitAggregate)
-                .setIcon(android.R.drawable.ic_menu_share);
-        menu.add(0, MENU_ITEM_JOIN_AGGREGATE, 0, R.string.menu_joinAggregate)
-                .setIcon(android.R.drawable.ic_menu_add);
-        menu.add(0, MENU_ITEM_OPTIONS, 0, R.string.menu_contactOptions)
-                .setIcon(R.drawable.ic_menu_mark);
+        super.onCreateOptionsMenu(menu);
+
+        final MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.view, menu);
         return true;
     }
 
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         super.onPrepareOptionsMenu(menu);
-        // Perform this check each time the menu is about to be shown, because the Barcode Scanner
-        // could be installed or uninstalled at any time.
-        if (isBarcodeScannerInstalled()) {
-            if (menu.findItem(MENU_ITEM_SHOW_BARCODE) == null) {
-                menu.add(0, MENU_ITEM_SHOW_BARCODE, 0, R.string.menu_showBarcode)
-                        .setIcon(R.drawable.ic_menu_show_barcode);
-            }
-        } else {
-            menu.removeItem(MENU_ITEM_SHOW_BARCODE);
-        }
 
-        // Only show the edit option if we have a selected tab.
-        if (mSelectedRawContactId != null) {
-            if (menu.findItem(MENU_ITEM_EDIT) == null) {
-                menu.add(0, MENU_ITEM_EDIT, 0, R.string.menu_editContact)
-                    .setIcon(android.R.drawable.ic_menu_edit)
-                    .setAlphabeticShortcut('e');
-            }
-        } else {
-            menu.removeItem(MENU_ITEM_EDIT);
-        }
+        // Only allow edit if we have a selected tab
+        final boolean contactSelected = (mSelectedRawContactId != null);
+        menu.findItem(R.id.menu_edit).setEnabled(contactSelected);
 
-        boolean isAggregate = mRawContactIds.size() > 1;
-        menu.findItem(MENU_ITEM_SPLIT_AGGREGATE).setEnabled(isAggregate);
+        // Only allow split when more than one contact
+        final boolean isAggregate = (mRawContactIds.size() > 1);
+        menu.findItem(R.id.menu_split).setEnabled(isAggregate);
+
         return true;
     }
 
-    private boolean isBarcodeScannerInstalled() {
-        final Intent intent = new Intent(SHOW_BARCODE_INTENT);
-        ResolveInfo ri = getPackageManager().resolveActivity(intent,
-                PackageManager.MATCH_DEFAULT_ONLY);
-        return ri != null;
-    }
-
     @Override
     public void onCreateContextMenu(ContextMenu menu, View view, ContextMenuInfo menuInfo) {
         AdapterView.AdapterContextMenuInfo info;
@@ -574,7 +535,7 @@
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
         switch (item.getItemId()) {
-            case MENU_ITEM_EDIT: {
+            case R.id.menu_edit: {
                 Long rawContactIdToEdit = mSelectedRawContactId;
                 if (rawContactIdToEdit == null) {
                     // This shouldn't be possible. We only show the edit option if
@@ -591,13 +552,12 @@
                         REQUEST_EDIT_CONTACT);
                 break;
             }
-            case MENU_ITEM_DELETE: {
+            case R.id.menu_delete: {
                 // Get confirmation
                 showDialog(DIALOG_CONFIRM_DELETE);
                 return true;
             }
-
-            case MENU_ITEM_SPLIT_AGGREGATE: {
+            case R.id.menu_split: {
                 if (mRawContactIds.size() == 2) {
                     splitContact(mRawContactIds.get(1));
                 } else {
@@ -605,59 +565,30 @@
                 }
                 return true;
             }
-
-            case MENU_ITEM_JOIN_AGGREGATE: {
+            case R.id.menu_join: {
                 showJoinAggregateActivity();
                 return true;
             }
-
-            case MENU_ITEM_OPTIONS: {
+            case R.id.menu_options: {
                 showOptionsActivity();
                 return true;
             }
+            case R.id.menu_share: {
+                final Intent intent = new Intent(Intent.ACTION_SEND);
+                intent.setType(Contacts.CONTENT_ITEM_TYPE);
+                intent.putExtra(Intent.EXTRA_STREAM, mLookupUri);
 
-            // TODO(emillar) Bring this back.
-            /*case MENU_ITEM_SHOW_BARCODE:
-                if (mCursor.moveToFirst()) {
-                    Intent intent = new Intent(SHOW_BARCODE_INTENT);
-                    intent.putExtra("ENCODE_TYPE", "CONTACT_TYPE");
-                    Bundle bundle = new Bundle();
-                    String name = mCursor.getString(AGGREGATE_DISPLAY_NAME_COLUMN);
-                    if (!TextUtils.isEmpty(name)) {
-                        // Correctly handle when section headers are hidden
-                        int sepAdjust = SHOW_SEPARATORS ? 1 : 0;
+                // Launch chooser to share contact via
+                final CharSequence chooseTitle = getText(R.string.share_via);
+                final Intent chooseIntent = Intent.createChooser(intent, chooseTitle);
 
-                        bundle.putString(Contacts.Intents.Insert.NAME, name);
-                        // The 0th ViewEntry in each ArrayList below is a separator item
-                        int entriesToAdd = Math.min(mPhoneEntries.size() - sepAdjust, PHONE_KEYS.length);
-                        for (int x = 0; x < entriesToAdd; x++) {
-                            ViewEntry entry = mPhoneEntries.get(x + sepAdjust);
-                            bundle.putString(PHONE_KEYS[x], entry.data);
-                        }
-                        entriesToAdd = Math.min(mEmailEntries.size() - sepAdjust, EMAIL_KEYS.length);
-                        for (int x = 0; x < entriesToAdd; x++) {
-                            ViewEntry entry = mEmailEntries.get(x + sepAdjust);
-                            bundle.putString(EMAIL_KEYS[x], entry.data);
-                        }
-                        if (mPostalEntries.size() >= 1 + sepAdjust) {
-                            ViewEntry entry = mPostalEntries.get(sepAdjust);
-                            bundle.putString(Contacts.Intents.Insert.POSTAL, entry.data);
-                        }
-                        intent.putExtra("ENCODE_DATA", bundle);
-                        try {
-                            startActivity(intent);
-                        } catch (ActivityNotFoundException e) {
-                            // The check in onPrepareOptionsMenu() should make this impossible, but
-                            // for safety I'm catching the exception rather than crashing. Ideally
-                            // I'd call Menu.removeItem() here too, but I don't see a way to get
-                            // the options menu.
-                            Log.e(TAG, "Show barcode menu item was clicked but Barcode Scanner " +
-                                    "was not installed.");
-                        }
-                        return true;
-                    }
+                try {
+                    startActivity(chooseIntent);
+                } catch (ActivityNotFoundException ex) {
+                    Toast.makeText(this, R.string.share_error, Toast.LENGTH_SHORT).show();
                 }
-                break; */
+                return true;
+            }
         }
         return super.onOptionsItemSelected(item);
     }
@@ -953,7 +884,7 @@
                     entry.mimetype = mimetype;
                     entry.label = buildActionString(kind, entryValues, true);
                     entry.data = buildDataString(kind, entryValues);
-                    if (kind.typeColumn != null) {
+                    if (kind.typeColumn != null && entryValues.containsKey(kind.typeColumn)) {
                         entry.type = entryValues.getAsInteger(kind.typeColumn);
                     }
                     if (kind.iconRes > 0) {
@@ -1032,7 +963,7 @@
                             String host = null;
 
                             if (TextUtils.isEmpty(entry.label)) {
-                                entry.label = getString(R.string.im).toLowerCase();
+                                entry.label = getString(R.string.chat_other).toLowerCase();
                             }
 
                             if (protocolObj instanceof Number) {
@@ -1287,7 +1218,7 @@
             TextView data = views.data;
             if (data != null) {
                 if (entry.mimetype.equals(Phone.CONTENT_ITEM_TYPE)
-                        || entry.mimetype.equals(FastTrackWindow.MIME_SMS_ADDRESS)) {
+                        || entry.mimetype.equals(Constants.MIME_SMS_ADDRESS)) {
                     data.setText(PhoneNumberUtils.formatNumber(entry.data));
                 } else {
                     data.setText(entry.data);
diff --git a/src/com/android/contacts/model/EntityDelta.java b/src/com/android/contacts/model/EntityDelta.java
index 69e1e51..f096cc7 100644
--- a/src/com/android/contacts/model/EntityDelta.java
+++ b/src/com/android/contacts/model/EntityDelta.java
@@ -29,7 +29,6 @@
 import android.os.Parcel;
 import android.os.Parcelable;
 import android.provider.BaseColumns;
-import android.provider.ContactsContract.AggregationExceptions;
 import android.provider.ContactsContract.Data;
 import android.provider.ContactsContract.RawContacts;
 import android.view.View;
@@ -98,6 +97,8 @@
         // Always take after values from new state
         this.mValues.mAfter = remote.mValues.mAfter;
 
+        // TODO: log before/after versions to track re-parenting
+
         // Find matching local entry for each remote values, or create
         for (ArrayList<ValuesDelta> mimeEntries : remote.mEntries.values()) {
             for (ValuesDelta remoteEntry : mimeEntries) {
@@ -120,6 +121,10 @@
         return mValues;
     }
 
+    public boolean isContactInsert() {
+        return mValues.isInsert();
+    }
+
     /**
      * Get the {@link ValuesDelta} child marked as {@link Data#IS_PRIMARY},
      * which may return null when no entry exists.
@@ -279,25 +284,44 @@
     }
 
     /**
+     * Build a list of {@link ContentProviderOperation} that will assert any
+     * "before" state hasn't changed. This is maintained separately so that all
+     * asserts can take place before any updates occur.
+     */
+    public void buildAssert(ArrayList<ContentProviderOperation> buildInto) {
+        final boolean isContactInsert = mValues.isInsert();
+        if (!isContactInsert) {
+            // Assert version is consistent while persisting changes
+            final Long beforeId = mValues.getId();
+            final Long beforeVersion = mValues.getAsLong(RawContacts.VERSION);
+
+            final ContentProviderOperation.Builder builder = ContentProviderOperation
+                    .newAssertQuery(RawContacts.CONTENT_URI);
+            builder.withSelection(RawContacts._ID + "=" + beforeId, null);
+            builder.withValue(RawContacts.VERSION, beforeVersion);
+            buildInto.add(builder.build());
+        }
+    }
+
+    /**
      * Build a list of {@link ContentProviderOperation} that will transform the
      * current "before" {@link Entity} state into the modified state which this
      * {@link EntityDelta} represents.
      */
-    public ArrayList<ContentProviderOperation> buildDiff() {
-        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+    public void buildDiff(ArrayList<ContentProviderOperation> buildInto) {
+        final int firstIndex = buildInto.size();
 
         final boolean isContactInsert = mValues.isInsert();
         final boolean isContactDelete = mValues.isDelete();
         final boolean isContactUpdate = !isContactInsert && !isContactDelete;
 
         final Long beforeId = mValues.getId();
-        final Long beforeVersion = mValues.getAsLong(RawContacts.VERSION);
 
         Builder builder;
 
         // Build possible operation at Contact level
         builder = mValues.buildDiff(RawContacts.CONTENT_URI);
-        possibleAdd(diff, builder);
+        possibleAdd(buildInto, builder);
 
         // Build operations for all children
         for (ArrayList<ValuesDelta> mimeEntries : mEntries.values()) {
@@ -309,7 +333,7 @@
                 if (child.isInsert()) {
                     if (isContactInsert) {
                         // Parent is brand new insert, so back-reference _id
-                        builder.withValueBackReference(Data.RAW_CONTACT_ID, 0);
+                        builder.withValueBackReference(Data.RAW_CONTACT_ID, firstIndex);
                     } else {
                         // Inserting under existing, so fill with known _id
                         builder.withValue(Data.RAW_CONTACT_ID, beforeId);
@@ -318,43 +342,20 @@
                     // Child must be insert when Contact insert
                     throw new IllegalArgumentException("When parent insert, child must be also");
                 }
-                possibleAdd(diff, builder);
+                possibleAdd(buildInto, builder);
             }
         }
 
-        // Create exception when insert requested aggregate membership
-        final Long contactId = mValues.getAsLong(RawContacts.CONTACT_ID);
-        if (isContactInsert && contactId != null) {
-            builder = ContentProviderOperation.newUpdate(AggregationExceptions.CONTENT_URI);
-            builder.withValue(AggregationExceptions.TYPE, AggregationExceptions.TYPE_KEEP_IN);
-            builder.withValue(AggregationExceptions.CONTACT_ID, contactId);
-            builder.withValueBackReference(AggregationExceptions.RAW_CONTACT_ID, 0);
-            possibleAdd(diff, builder);
-        }
-
-        final boolean hasOperations = diff.size() > 0;
-
-        if (hasOperations && isContactUpdate) {
+        final boolean addedOperations = buildInto.size() > firstIndex;
+        if (addedOperations && isContactUpdate) {
             // Suspend aggregation while persisting updates
             builder = buildSetAggregationMode(beforeId, RawContacts.AGGREGATION_MODE_SUSPENDED);
-            diff.add(0, builder.build());
+            buildInto.add(firstIndex, builder.build());
 
             // Restore aggregation as last operation
             builder = buildSetAggregationMode(beforeId, RawContacts.AGGREGATION_MODE_DEFAULT);
-            diff.add(builder.build());
+            buildInto.add(builder.build());
         }
-
-        if (hasOperations && (isContactUpdate || isContactDelete)) {
-            // Assert version is consistent while persisting changes
-            builder = ContentProviderOperation.newAssertQuery(RawContacts.CONTENT_URI);
-            builder.withSelection(RawContacts._ID + "=" + beforeId, null);
-            builder.withValue(RawContacts.VERSION, beforeVersion);
-            // Sneak version check at beginning of list--we only depend on
-            // back-references during insert cases.
-            diff.add(0, builder.build());
-        }
-
-        return diff;
     }
 
     /**
diff --git a/src/com/android/contacts/model/EntityModifier.java b/src/com/android/contacts/model/EntityModifier.java
index 7a114e0..e904a8b 100644
--- a/src/com/android/contacts/model/EntityModifier.java
+++ b/src/com/android/contacts/model/EntityModifier.java
@@ -204,7 +204,8 @@
      */
     public static EditType getCurrentType(ContentValues entry, DataKind kind) {
         if (kind.typeColumn == null) return null;
-        final int rawValue = entry.getAsInteger(kind.typeColumn);
+        final Integer rawValue = entry.getAsInteger(kind.typeColumn);
+        if (rawValue == null) return null;
         return getType(kind, rawValue);
     }
 
@@ -215,6 +216,7 @@
     public static EditType getCurrentType(Cursor cursor, DataKind kind) {
         if (kind.typeColumn == null) return null;
         final int index = cursor.getColumnIndex(kind.typeColumn);
+        if (index == -1) return null;
         final int rawValue = cursor.getInt(index);
         return getType(kind, rawValue);
     }
@@ -232,6 +234,20 @@
     }
 
     /**
+     * Return the precedence for the the given {@link EditType#rawValue}, where
+     * lower numbers are higher precedence.
+     */
+    public static int getTypePrecedence(DataKind kind, int rawValue) {
+        for (int i = 0; i < kind.typeList.size(); i++) {
+            final EditType type = kind.typeList.get(i);
+            if (type.rawValue == rawValue) {
+                return i;
+            }
+        }
+        return Integer.MAX_VALUE;
+    }
+
+    /**
      * Find the best {@link EditType} for a potential insert. The "best" is the
      * first primary type that doesn't already exist. When all valid types
      * exist, we pick the last valid option.
diff --git a/src/com/android/contacts/model/EntitySet.java b/src/com/android/contacts/model/EntitySet.java
new file mode 100644
index 0000000..f9425b9
--- /dev/null
+++ b/src/com/android/contacts/model/EntitySet.java
@@ -0,0 +1,217 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+package com.android.contacts.model;
+
+import com.google.android.collect.Lists;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentResolver;
+import android.content.Entity;
+import android.content.EntityIterator;
+import android.content.ContentProviderOperation.Builder;
+import android.os.Parcel;
+import android.os.Parcelable;
+import android.os.RemoteException;
+import android.provider.ContactsContract.AggregationExceptions;
+import android.provider.ContactsContract.Contacts;
+import android.provider.ContactsContract.RawContacts;
+
+import java.util.ArrayList;
+
+/**
+ * Container for multiple {@link EntityDelta} objects, usually when editing
+ * together as an entire aggregate. Provides convenience methods for parceling
+ * and applying another {@link EntitySet} over it.
+ */
+public class EntitySet extends ArrayList<EntityDelta> implements Parcelable {
+    private EntitySet() {
+    }
+
+    /**
+     * Create an {@link EntitySet} that contains the given {@link EntityDelta},
+     * usually when inserting a new {@link Contacts} entry.
+     */
+    public static EntitySet fromSingle(EntityDelta delta) {
+        final EntitySet state = new EntitySet();
+        state.add(delta);
+        return state;
+    }
+
+    /**
+     * Create an {@link EntitySet} based on {@link Contacts} specified by the
+     * given query parameters. This closes the {@link EntityIterator} when
+     * finished, so it doesn't subscribe to updates.
+     */
+    public static EntitySet fromQuery(ContentResolver resolver, String selection,
+            String[] selectionArgs, String sortOrder) {
+        EntityIterator iterator = null;
+        final EntitySet state = new EntitySet();
+        try {
+            // Perform background query to pull contact details
+            iterator = resolver.queryEntities(RawContacts.CONTENT_URI, selection, selectionArgs,
+                    sortOrder);
+            while (iterator.hasNext()) {
+                // Read all contacts into local deltas to prepare for edits
+                final Entity before = iterator.next();
+                final EntityDelta entity = EntityDelta.fromBefore(before);
+                state.add(entity);
+            }
+        } catch (RemoteException e) {
+            throw new IllegalStateException("Problem querying contact details", e);
+        } finally {
+            if (iterator != null) {
+                iterator.close();
+            }
+        }
+        return state;
+    }
+
+    /**
+     * Merge the "after" values from the given {@link EntitySet}.
+     */
+    public void mergeAfter(EntitySet remote) {
+        // TODO: write this folding logic to re-parent
+        throw new UnsupportedOperationException();
+    }
+
+    /**
+     * Build a list of {@link ContentProviderOperation} that will transform all
+     * the "before" {@link Entity} states into the modified state which all
+     * {@link EntityDelta} objects represent. This method specifically creates
+     * any {@link AggregationExceptions} rules needed to groups edits together.
+     */
+    public ArrayList<ContentProviderOperation> buildDiff() {
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+
+        final long rawContactId = this.findRawContactId();
+        int firstInsertRow = -1;
+
+        // First pass enforces versions remain consistent
+        for (EntityDelta delta : this) {
+            delta.buildAssert(diff);
+        }
+
+        final int assertMark = diff.size();
+
+        // Second pass builds actual operations
+        for (EntityDelta delta : this) {
+            final int firstBatch = diff.size();
+            delta.buildDiff(diff);
+
+            // Only create rules for inserts
+            if (!delta.isContactInsert()) continue;
+
+            if (rawContactId != -1) {
+                // Has existing contact, so bind to it strongly
+                final Builder builder = beginKeepTogether();
+                builder.withValue(AggregationExceptions.RAW_CONTACT_ID1, rawContactId);
+                builder.withValueBackReference(AggregationExceptions.RAW_CONTACT_ID2, firstBatch);
+                diff.add(builder.build());
+
+            } else if (firstInsertRow == -1) {
+                // First insert case, so record row
+                firstInsertRow = firstBatch;
+
+            } else {
+                // Additional insert case, so point at first insert
+                final Builder builder = beginKeepTogether();
+                builder.withValueBackReference(AggregationExceptions.RAW_CONTACT_ID1, firstInsertRow);
+                builder.withValueBackReference(AggregationExceptions.RAW_CONTACT_ID2, firstBatch);
+                diff.add(builder.build());
+            }
+        }
+
+        // No real changes if only left with asserts
+        if (diff.size() == assertMark) {
+            diff.clear();
+        }
+
+        return diff;
+    }
+
+    /**
+     * Start building a {@link ContentProviderOperation} that will keep two
+     * {@link RawContacts} together.
+     */
+    protected Builder beginKeepTogether() {
+        final Builder builder = ContentProviderOperation
+                .newUpdate(AggregationExceptions.CONTENT_URI);
+        builder.withValue(AggregationExceptions.TYPE, AggregationExceptions.TYPE_KEEP_TOGETHER);
+        return builder;
+    }
+
+    /**
+     * Search all contained {@link EntityDelta} for the first one with an
+     * existing {@link RawContacts#_ID} value. Usually used when creating
+     * {@link AggregationExceptions} during an update.
+     */
+    public long findRawContactId() {
+        for (EntityDelta delta : this) {
+            final Long rawContactId = delta.getValues().getAsLong(RawContacts._ID);
+            if (rawContactId != null && rawContactId >= 0) {
+                return rawContactId;
+            }
+        }
+        return -1;
+    }
+
+    /**
+     * Find {@link RawContacts#_ID} of the requested {@link EntityDelta}.
+     */
+    public long getRawContactId(int index) {
+        if (index >=0 && index < this.size()) {
+            final EntityDelta delta = this.get(index);
+            return delta.getValues().getAsLong(RawContacts._ID);
+        } else {
+            return -1;
+        }
+    }
+
+    /** {@inheritDoc} */
+    public int describeContents() {
+        // Nothing special about this parcel
+        return 0;
+    }
+
+    /** {@inheritDoc} */
+    public void writeToParcel(Parcel dest, int flags) {
+        final int size = this.size();
+        dest.writeInt(size);
+        for (EntityDelta delta : this) {
+            dest.writeParcelable(delta, flags);
+        }
+    }
+
+    public void readFromParcel(Parcel source) {
+        final int size = source.readInt();
+        for (int i = 0; i < size; i++) {
+            this.add(source.<EntityDelta> readParcelable(null));
+        }
+    }
+
+    public static final Parcelable.Creator<EntitySet> CREATOR = new Parcelable.Creator<EntitySet>() {
+        public EntitySet createFromParcel(Parcel in) {
+            final EntitySet state = new EntitySet();
+            state.readFromParcel(in);
+            return state;
+        }
+
+        public EntitySet[] newArray(int size) {
+            return new EntitySet[size];
+        }
+    };
+}
diff --git a/src/com/android/contacts/model/HardCodedSources.java b/src/com/android/contacts/model/HardCodedSources.java
index 5afaef7..885a06b 100644
--- a/src/com/android/contacts/model/HardCodedSources.java
+++ b/src/com/android/contacts/model/HardCodedSources.java
@@ -384,6 +384,7 @@
     private static final String GOOGLE_MY_CONTACTS_GROUP = "System Group: My Contacts";
 
     public static final void attemptMyContactsMembership(EntityDelta state, Context context) {
+        // TODO: create group when it doesnt exist (syncadapter will fold in)
         final ContentResolver resolver = context.getContentResolver();
         final Cursor cursor = resolver.query(Groups.CONTENT_URI, new String[] { Groups.SOURCE_ID },
                 Groups.TITLE + "=?", new String[] { GOOGLE_MY_CONTACTS_GROUP }, null);
@@ -404,14 +405,6 @@
      * The constants below are shared with the Exchange sync adapter, and are
      * currently static. These values should be maintained in parallel.
      */
-    private static final int TYPE_EMAIL1 = 20;
-    private static final int TYPE_EMAIL2 = 21;
-    private static final int TYPE_EMAIL3 = 22;
-
-    private static final int TYPE_IM1 = 23;
-    private static final int TYPE_IM2 = 24;
-    private static final int TYPE_IM3 = 25;
-
     private static final int TYPE_WORK2 = 26;
     private static final int TYPE_HOME2 = 27;
     private static final int TYPE_CAR = 28;
@@ -511,20 +504,12 @@
 
             kind.actionHeader = new ActionInflater(list.resPackageName, kind);
             kind.actionBody = new SimpleInflater(Email.DATA);
-
-            kind.typeColumn = Email.TYPE;
-            kind.typeList = Lists.newArrayList();
-            kind.typeList.add(new EditType(TYPE_EMAIL1, R.string.type_email_1)
-                    .setSpecificMax(1));
-            kind.typeList.add(new EditType(TYPE_EMAIL2, R.string.type_email_2)
-                    .setSpecificMax(1));
-            kind.typeList.add(new EditType(TYPE_EMAIL3, R.string.type_email_3)
-                    .setSpecificMax(1));
+            kind.typeOverallMax = 3;
 
             kind.fieldList = Lists.newArrayList();
             kind.fieldList.add(new EditField(Email.DATA, R.string.emailLabelsGroup, FLAGS_EMAIL));
-            kind.fieldList.add(new EditField(Email.DISPLAY_NAME, R.string.label_email_display_name,
-                    FLAGS_PERSON_NAME));
+//            kind.fieldList.add(new EditField(Email.DISPLAY_NAME, R.string.label_email_display_name,
+//                    FLAGS_PERSON_NAME));
 
             list.add(kind);
         }
@@ -536,15 +521,33 @@
 
             kind.actionHeader = new ActionInflater(list.resPackageName, kind);
             kind.actionBody = new SimpleInflater(Im.DATA);
+            kind.typeOverallMax = 3;
 
-            kind.typeColumn = Im.TYPE;
-            kind.typeList = new ArrayList<EditType>();
-            kind.typeList.add(new EditType(TYPE_IM1, R.string.type_im_1).
-                    setSpecificMax(1));
-            kind.typeList.add(new EditType(TYPE_IM2, R.string.type_im_2).
-                    setSpecificMax(1));
-            kind.typeList.add(new EditType(TYPE_IM3, R.string.type_im_3).
-                    setSpecificMax(1));
+            // NOTE: even though a traditional "type" exists, for editing
+            // purposes we're using the network to pick labels
+
+            kind.defaultValues = new ContentValues();
+            kind.defaultValues.put(Im.TYPE, Im.TYPE_OTHER);
+
+            kind.typeColumn = Im.PROTOCOL;
+            kind.typeList = Lists.newArrayList();
+            kind.typeList.add(new EditType(Im.PROTOCOL_AIM, R.string.type_im_aim,
+                    R.string.chat_aim));
+            kind.typeList.add(new EditType(Im.PROTOCOL_MSN, R.string.type_im_msn,
+                    R.string.chat_msn));
+            kind.typeList.add(new EditType(Im.PROTOCOL_YAHOO, R.string.type_im_yahoo,
+                    R.string.chat_yahoo));
+            kind.typeList.add(new EditType(Im.PROTOCOL_SKYPE, R.string.type_im_skype,
+                    R.string.chat_skype));
+            kind.typeList.add(new EditType(Im.PROTOCOL_QQ, R.string.type_im_qq, R.string.chat_qq));
+            kind.typeList.add(new EditType(Im.PROTOCOL_GOOGLE_TALK, R.string.type_im_google_talk,
+                    R.string.chat_gtalk));
+            kind.typeList.add(new EditType(Im.PROTOCOL_ICQ, R.string.type_im_icq,
+                    R.string.chat_icq));
+            kind.typeList.add(new EditType(Im.PROTOCOL_JABBER, R.string.type_im_jabber,
+                    R.string.chat_jabber));
+            kind.typeList.add(new EditType(Im.PROTOCOL_CUSTOM, R.string.type_custom,
+                    R.string.chat_other).setSecondary(true).setCustomColumn(Im.CUSTOM_PROTOCOL));
 
             kind.fieldList = Lists.newArrayList();
             kind.fieldList.add(new EditField(Im.DATA, R.string.imLabelsGroup, FLAGS_EMAIL));
@@ -715,30 +718,28 @@
         public CharSequence inflateUsing(Context context, Cursor cursor) {
             final EditType type = EntityModifier.getCurrentType(cursor, mKind);
             final boolean validString = (type != null && type.actionRes != 0);
-            CharSequence actionString;
+            if (!validString) return null;
+
             if (type.customColumn != null) {
                 final int index = cursor.getColumnIndex(type.customColumn);
                 final String customLabel = cursor.getString(index);
-                actionString = String.format(context.getString(type.actionRes),
-                        customLabel);
+                return String.format(context.getString(type.actionRes), customLabel);
             } else {
-                actionString = context.getText(type.actionRes);
+                return context.getText(type.actionRes);
             }
-            return validString ? actionString : null;
         }
 
         public CharSequence inflateUsing(Context context, ContentValues values) {
             final EditType type = EntityModifier.getCurrentType(values, mKind);
             final boolean validString = (type != null && type.actionRes != 0);
-            CharSequence actionString;
+            if (!validString) return null;
+
             if (type.customColumn != null) {
                 final String customLabel = values.getAsString(type.customColumn);
-                actionString = String.format(context.getString(type.actionRes),
-                        customLabel);
+                return String.format(context.getString(type.actionRes), customLabel);
             } else {
-                actionString = context.getText(type.actionRes);
+                return context.getText(type.actionRes);
             }
-            return validString ? actionString : null;
         }
     }
 
diff --git a/src/com/android/contacts/ui/EditContactActivity.java b/src/com/android/contacts/ui/EditContactActivity.java
index d5bae7d..7e73568 100644
--- a/src/com/android/contacts/ui/EditContactActivity.java
+++ b/src/com/android/contacts/ui/EditContactActivity.java
@@ -23,6 +23,7 @@
 import com.android.contacts.model.ContactsSource;
 import com.android.contacts.model.EntityDelta;
 import com.android.contacts.model.EntityModifier;
+import com.android.contacts.model.EntitySet;
 import com.android.contacts.model.HardCodedSources;
 import com.android.contacts.model.Sources;
 import com.android.contacts.model.EntityDelta.ValuesDelta;
@@ -44,19 +45,15 @@
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.Entity;
-import android.content.EntityIterator;
 import android.content.Intent;
 import android.content.OperationApplicationException;
 import android.net.Uri;
 import android.os.Bundle;
-import android.os.Parcel;
-import android.os.Parcelable;
 import android.os.RemoteException;
 import android.provider.ContactsContract;
 import android.provider.ContactsContract.Contacts;
 import android.provider.ContactsContract.RawContacts;
 import android.provider.ContactsContract.CommonDataKinds.Email;
-import android.provider.ContactsContract.CommonDataKinds.GroupMembership;
 import android.provider.ContactsContract.CommonDataKinds.Phone;
 import android.provider.ContactsContract.CommonDataKinds.StructuredName;
 import android.provider.ContactsContract.Contacts.Data;
@@ -101,68 +98,14 @@
 //    private long mSelectedRawContactId = -1;
 //    private long mContactId = -1;
 
+    private String mQuerySelection;
+
     private ScrollingTabWidget mTabWidget;
     private ContactHeaderWidget mHeader;
 
     private ContactEditorView mEditor;
 
-    private EditState mState = new EditState();
-
-    private static class EditState extends ArrayList<EntityDelta> implements Parcelable {
-        public long getContactId() {
-            if (this.size() > 0) {
-                // Assume the aggregate tied to first child
-                final EntityDelta first = this.get(0);
-                return first.getValues().getAsLong(RawContacts.CONTACT_ID);
-            } else {
-                // Otherwise return invalid value
-                return -1;
-            }
-        }
-
-        public long getRawContactId(int index) {
-            if (index >=0 && index < this.size()) {
-                final EntityDelta delta = this.get(index);
-                return delta.getValues().getAsLong(RawContacts._ID);
-            } else {
-                return -1;
-            }
-        }
-
-        /** {@inheritDoc} */
-        public int describeContents() {
-            // Nothing special about this parcel
-            return 0;
-        }
-
-        /** {@inheritDoc} */
-        public void writeToParcel(Parcel dest, int flags) {
-            final int size = this.size();
-            dest.writeInt(size);
-            for (EntityDelta delta : this) {
-                dest.writeParcelable(delta, flags);
-            }
-        }
-
-        public void readFromParcel(Parcel source) {
-            final int size = source.readInt();
-            for (int i = 0; i < size; i++) {
-                this.add(source.<EntityDelta> readParcelable(null));
-            }
-        }
-
-        public static final Parcelable.Creator<EditState> CREATOR = new Parcelable.Creator<EditState>() {
-            public EditState createFromParcel(Parcel in) {
-                final EditState state = new EditState();
-                state.readFromParcel(in);
-                return state;
-            }
-
-            public EditState[] newArray(int size) {
-                return new EditState[size];
-            }
-        };
-    }
+    private EntitySet mState;
 
     @Override
     protected void onCreate(Bundle icicle) {
@@ -237,27 +180,8 @@
                 selection = RawContacts._ID + "=" + rawContactId;
             }
 
-            EntityIterator iterator = null;
-            final EditState state = new EditState();
-            try {
-                // Perform background query to pull contact details
-                iterator = resolver.queryEntities(RawContacts.CONTENT_URI,
-                        selection, null, null);
-                while (iterator.hasNext()) {
-                    // Read all contacts into local deltas to prepare for edits
-                    final Entity before = iterator.next();
-                    final EntityDelta entity = EntityDelta.fromBefore(before);
-                    state.add(entity);
-                }
-            } catch (RemoteException e) {
-                throw new IllegalStateException("Problem querying contact details", e);
-            } finally {
-                if (iterator != null) {
-                    iterator.close();
-                }
-            }
-
-            target.mState = state;
+            target.mQuerySelection = selection;
+            target.mState = EntitySet.fromQuery(resolver, selection, null, null);
             return null;
         }
 
@@ -270,6 +194,7 @@
     }
 
 
+
 //    /**
 //     * Instance state for {@link #mEditor} from a previous instance.
 //     */
@@ -301,7 +226,7 @@
     @Override
     protected void onRestoreInstanceState(Bundle savedInstanceState) {
         // Read modifications from instance
-        mState = savedInstanceState.<EditState> getParcelable(KEY_EDIT_STATE);
+        mState = savedInstanceState.<EntitySet> getParcelable(KEY_EDIT_STATE);
 
 //        mSelectedRawContactId = savedInstanceState.getLong(KEY_SELECTED_TAB_ID);
 //        mContactId = savedInstanceState.getLong(KEY_CONTACT_ID);
@@ -506,55 +431,70 @@
      * {@link EmptyService} to make sure the background thread can finish
      * persisting in cases where the system wants to reclaim our process.
      */
-    public static class PersistTask extends WeakAsyncTask<EditState, Void, Boolean, Context> {
-        public PersistTask(Context context) {
-            super(context);
+    public static class PersistTask extends
+            WeakAsyncTask<EntitySet, Void, Integer, EditContactActivity> {
+        private static final int PERSIST_TRIES = 3;
+
+        private static final int RESULT_UNCHANGED = 0;
+        private static final int RESULT_SUCCESS = 1;
+        private static final int RESULT_FAILURE = 2;
+
+        public PersistTask(EditContactActivity target) {
+            super(target);
         }
 
         /** {@inheritDoc} */
         @Override
-        protected void onPreExecute(Context context) {
+        protected void onPreExecute(EditContactActivity target) {
             // Before starting this task, start an empty service to protect our
             // process from being reclaimed by the system.
+            final Context context = target;
             context.startService(new Intent(context, EmptyService.class));
         }
 
         /** {@inheritDoc} */
         @Override
-        protected Boolean doInBackground(Context context, EditState... params) {
-            final EditState state = params[0];
-            final ContentResolver resolver = context.getContentResolver();
+        protected Integer doInBackground(EditContactActivity target, EntitySet... params) {
+            final ContentResolver resolver = target.getContentResolver();
 
-            boolean savedChanges = false;
-            for (EntityDelta entity : state) {
-                // TODO: remove this extremely verbose debugging
-                Log.d(TAG, "trying to persist " + entity.toString());
-                final ArrayList<ContentProviderOperation> diff = entity.buildDiff();
-
-                // Skip updates that don't change
-                if (diff.size() == 0) continue;
-                savedChanges = true;
-
-                // TODO: handle failed operations by re-reading entity
-                // may also need backoff algorithm to give failed msg after n tries
-
+            int tries = 0;
+            Integer result = RESULT_FAILURE;
+            EntitySet state = params[0];
+            while (tries < PERSIST_TRIES) {
                 try {
+                    // Build operations and try applying
+                    final ArrayList<ContentProviderOperation> diff = state.buildDiff();
                     resolver.applyBatch(ContactsContract.AUTHORITY, diff);
+                    result = (diff.size() > 0) ? RESULT_SUCCESS : RESULT_UNCHANGED;
+                    break;
+
                 } catch (RemoteException e) {
-                    Log.w(TAG, "problem writing rawcontact diff", e);
+                    // Something went wrong, bail without success
+                    Log.e(TAG, "Problem persisting user edits", e);
+                    break;
+
                 } catch (OperationApplicationException e) {
-                    Log.w(TAG, "problem writing rawcontact diff", e);
+                    // Version consistency failed, re-parent change and try again
+                    Log.w(TAG, "Version consistency failed, re-parenting", e);
+                    final EntitySet newState = EntitySet.fromQuery(resolver,
+                            target.mQuerySelection, null, null);
+                    newState.mergeAfter(state);
+                    state = newState;
                 }
             }
 
-            return savedChanges;
+            return result;
         }
 
         /** {@inheritDoc} */
         @Override
-        protected void onPostExecute(Context context, Boolean result) {
-            if (result) {
+        protected void onPostExecute(EditContactActivity target, Integer result) {
+            final Context context = target;
+
+            if (result == RESULT_SUCCESS) {
                 Toast.makeText(context, R.string.contactSavedToast, Toast.LENGTH_SHORT).show();
+            } else if (result == RESULT_FAILURE) {
+                Toast.makeText(context, R.string.contactSavedErrorToast, Toast.LENGTH_LONG).show();
             }
 
             // Stop the service that was protecting us
@@ -708,13 +648,6 @@
                     values.put(RawContacts.ACCOUNT_NAME, account.name);
                     values.put(RawContacts.ACCOUNT_TYPE, account.type);
 
-                    // Tie directly to an existing aggregate, which is turned
-                    // into an AggregationException later during persisting.
-                    final long aggregateId = target.mState.getContactId();
-                    if (aggregateId >= 0) {
-                        values.put(RawContacts.CONTACT_ID, aggregateId);
-                    }
-
                     // Parse any values from incoming intent
                     final EntityDelta insert = new EntityDelta(ValuesDelta.fromAfter(values));
                     final ContactsSource source = sources.getInflatedSource(account.type,
@@ -732,7 +665,13 @@
                         HardCodedSources.attemptMyContactsMembership(insert, target);
                     }
 
-                    target.mState.add(insert);
+                    if (target.mState == null) {
+                        // Create state if none exists yet
+                        target.mState = EntitySet.fromSingle(insert);
+                    } else {
+                        // Add contact onto end of existing state
+                        target.mState.add(insert);
+                    }
 
                     target.bindTabs();
                     target.bindHeader();
diff --git a/src/com/android/contacts/ui/FastTrackWindow.java b/src/com/android/contacts/ui/FastTrackWindow.java
index 80e2b39..01164f8 100644
--- a/src/com/android/contacts/ui/FastTrackWindow.java
+++ b/src/com/android/contacts/ui/FastTrackWindow.java
@@ -19,6 +19,7 @@
 import com.android.contacts.model.ContactsSource;
 import com.android.contacts.model.Sources;
 import com.android.contacts.model.ContactsSource.DataKind;
+import com.android.contacts.util.Constants;
 import com.android.contacts.util.NotifyingAsyncQueryHandler;
 import com.android.internal.policy.PolicyManager;
 
@@ -143,25 +144,13 @@
     private String[] mExcludeMimes;
 
     /**
-     * Specific MIME-type for {@link Phone#CONTENT_ITEM_TYPE} entries that
-     * distinguishes actions that should initiate a text message.
-     */
-    // TODO: We should move this to someplace more general as it is needed in a
-    // few places in the app code.
-    public static final String MIME_SMS_ADDRESS = "vnd.android.cursor.item/sms-address";
-
-    private static final String SCHEME_TEL = "tel";
-    private static final String SCHEME_SMSTO = "smsto";
-    private static final String SCHEME_MAILTO = "mailto";
-
-    /**
      * Specific mime-types that should be bumped to the front of the fast-track.
      * Other mime-types not appearing in this list follow in alphabetic order.
      */
     private static final String[] ORDERED_MIMETYPES = new String[] {
         Phone.CONTENT_ITEM_TYPE,
         Contacts.CONTENT_ITEM_TYPE,
-        MIME_SMS_ADDRESS,
+        Constants.MIME_SMS_ADDRESS,
         Email.CONTENT_ITEM_TYPE,
     };
 
@@ -605,7 +594,7 @@
             mMimeType = mimeType;
 
             // Inflate strings from cursor
-            mAlternate = MIME_SMS_ADDRESS.equals(mimeType);
+            mAlternate = Constants.MIME_SMS_ADDRESS.equals(mimeType);
             if (mAlternate && mKind.actionAltHeader != null) {
                 mHeader = mKind.actionAltHeader.inflateUsing(context, cursor);
             } else if (mKind.actionHeader != null) {
@@ -620,21 +609,21 @@
             if (Phone.CONTENT_ITEM_TYPE.equals(mimeType)) {
                 final String number = getAsString(cursor, Phone.NUMBER);
                 if (!TextUtils.isEmpty(number)) {
-                    final Uri callUri = Uri.fromParts(SCHEME_TEL, number, null);
+                    final Uri callUri = Uri.fromParts(Constants.SCHEME_TEL, number, null);
                     mIntent = new Intent(Intent.ACTION_CALL_PRIVILEGED, callUri);
                 }
 
-            } else if (MIME_SMS_ADDRESS.equals(mimeType)) {
+            } else if (Constants.MIME_SMS_ADDRESS.equals(mimeType)) {
                 final String number = getAsString(cursor, Phone.NUMBER);
                 if (!TextUtils.isEmpty(number)) {
-                    final Uri smsUri = Uri.fromParts(SCHEME_SMSTO, number, null);
+                    final Uri smsUri = Uri.fromParts(Constants.SCHEME_SMSTO, number, null);
                     mIntent = new Intent(Intent.ACTION_SENDTO, smsUri);
                 }
 
             } else if (Email.CONTENT_ITEM_TYPE.equals(mimeType)) {
                 final String address = getAsString(cursor, Email.DATA);
                 if (!TextUtils.isEmpty(address)) {
-                    final Uri mailUri = Uri.fromParts(SCHEME_MAILTO, address, null);
+                    final Uri mailUri = Uri.fromParts(Constants.SCHEME_MAILTO, address, null);
                     mIntent = new Intent(Intent.ACTION_SENDTO, mailUri);
                 }
 
@@ -902,9 +891,9 @@
 
             // If phone number, also insert as text message action
             if (Phone.CONTENT_ITEM_TYPE.equals(mimeType) && kind != null) {
-                final Action action = new DataAction(mContext, source, MIME_SMS_ADDRESS, kind,
-                        cursor);
-                considerAdd(action, MIME_SMS_ADDRESS);
+                final Action action = new DataAction(mContext, source, Constants.MIME_SMS_ADDRESS,
+                        kind, cursor);
+                considerAdd(action, Constants.MIME_SMS_ADDRESS);
             }
         }
 
diff --git a/src/com/android/contacts/util/Constants.java b/src/com/android/contacts/util/Constants.java
new file mode 100644
index 0000000..696717e
--- /dev/null
+++ b/src/com/android/contacts/util/Constants.java
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+package com.android.contacts.util;
+
+import android.app.Service;
+import android.provider.ContactsContract.CommonDataKinds.Phone;
+
+/**
+ * Background {@link Service} that is used to keep our process alive long enough
+ * for background threads to finish. Started and stopped directly by specific
+ * background tasks when needed.
+ */
+public class Constants {
+    /**
+     * Specific MIME-type for {@link Phone#CONTENT_ITEM_TYPE} entries that
+     * distinguishes actions that should initiate a text message.
+     */
+    public static final String MIME_SMS_ADDRESS = "vnd.android.cursor.item/sms-address";
+
+    public static final String SCHEME_TEL = "tel";
+    public static final String SCHEME_SMSTO = "smsto";
+    public static final String SCHEME_MAILTO = "mailto";
+
+}
diff --git a/tests/src/com/android/contacts/EntityDeltaTests.java b/tests/src/com/android/contacts/EntityDeltaTests.java
index be2dd35..73318cb 100644
--- a/tests/src/com/android/contacts/EntityDeltaTests.java
+++ b/tests/src/com/android/contacts/EntityDeltaTests.java
@@ -18,6 +18,7 @@
 
 import com.android.contacts.model.EntityDelta;
 import com.android.contacts.model.EntityDelta.ValuesDelta;
+import com.google.android.collect.Lists;
 
 import static android.content.ContentProviderOperation.TYPE_INSERT;
 import static android.content.ContentProviderOperation.TYPE_UPDATE;
@@ -44,15 +45,15 @@
  */
 @LargeTest
 public class EntityDeltaTests extends AndroidTestCase {
-    public static final String TAG = "AugmentedEntityTests";
+    public static final String TAG = "EntityDeltaTests";
 
-    private static final long TEST_CONTACT_ID = 12;
-    private static final long TEST_PHONE_ID = 24;
+    public static final long TEST_CONTACT_ID = 12;
+    public static final long TEST_PHONE_ID = 24;
 
-    private static final String TEST_PHONE_NUMBER_1 = "218-555-1111";
-    private static final String TEST_PHONE_NUMBER_2 = "218-555-2222";
+    public static final String TEST_PHONE_NUMBER_1 = "218-555-1111";
+    public static final String TEST_PHONE_NUMBER_2 = "218-555-2222";
 
-    private static final String TEST_ACCOUNT_NAME = "TEST";
+    public static final String TEST_ACCOUNT_NAME = "TEST";
 
     public EntityDeltaTests() {
         super();
@@ -63,7 +64,7 @@
         mContext = getContext();
     }
 
-    protected Entity getEntity(long contactId, long phoneId) {
+    public static Entity getEntity(long contactId, long phoneId) {
         // Build an existing contact read from database
         final ContentValues contact = new ContentValues();
         contact.put(RawContacts.VERSION, 43);
@@ -81,10 +82,10 @@
     }
 
     /**
-     * Test that {@link EntityDelta#augmentTo(Parcel)} correctly passes any
-     * changes through the {@link Parcel} object. This enforces that
-     * {@link EntityDelta} should be identical when serialized against the
-     * same "before" {@link Entity}.
+     * Test that {@link EntityDelta#mergeAfter(EntityDelta)} correctly passes
+     * any changes through the {@link Parcel} object. This enforces that
+     * {@link EntityDelta} should be identical when serialized against the same
+     * "before" {@link Entity}.
      */
     public void testParcelChangesNone() {
         final Entity before = getEntity(TEST_CONTACT_ID, TEST_PHONE_ID);
@@ -142,9 +143,9 @@
     }
 
     /**
-     * Test that {@link ValuesDelta#buildDiff()} is correctly built for
-     * insert, update, and delete cases. Note this only tests behavior for
-     * individual {@link Data} rows.
+     * Test that {@link ValuesDelta#buildDiff(android.net.Uri)} is correctly
+     * built for insert, update, and delete cases. Note this only tests behavior
+     * for individual {@link Data} rows.
      */
     public void testValuesDiffNone() {
         final ContentValues before = new ContentValues();
@@ -199,7 +200,7 @@
     }
 
     /**
-     * Test that {@link EntityDelta#buildDiff()} is correctly built for
+     * Test that {@link EntityDelta#buildDiff(ArrayList)} is correctly built for
      * insert, update, and delete cases. This only tests a subset of possible
      * {@link Data} row changes.
      */
@@ -208,7 +209,8 @@
         final EntityDelta source = EntityDelta.fromBefore(before);
 
         // Assert that writing unchanged produces few operations
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildDiff(diff);
 
         assertTrue("Created changes when none needed", (diff.size() == 0));
     }
@@ -225,7 +227,9 @@
         source.addEntry(ValuesDelta.fromAfter(phone));
 
         // Assert two operations: insert Data row and enforce version
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildAssert(diff);
+        source.buildDiff(diff);
         assertEquals("Unexpected operations", 4, diff.size());
         {
             final ContentProviderOperation oper = diff.get(0);
@@ -263,7 +267,9 @@
         source.addEntry(ValuesDelta.fromAfter(phone));
 
         // Assert three operations: update Contact, insert Data row, enforce version
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildAssert(diff);
+        source.buildDiff(diff);
         assertEquals("Unexpected operations", 5, diff.size());
         {
             final ContentProviderOperation oper = diff.get(0);
@@ -299,8 +305,10 @@
         final ValuesDelta child = source.getEntry(TEST_PHONE_ID);
         child.put(Phone.NUMBER, TEST_PHONE_NUMBER_2);
 
-        // Assert two operations: update Data and enforce version
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        // Assert that version is enforced
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildAssert(diff);
+        source.buildDiff(diff);
         assertEquals("Unexpected operations", 4, diff.size());
         {
             final ContentProviderOperation oper = diff.get(0);
@@ -331,7 +339,9 @@
         source.getValues().markDeleted();
 
         // Assert two operations: delete Contact and enforce version
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildAssert(diff);
+        source.buildDiff(diff);
         assertEquals("Unexpected operations", 2, diff.size());
         {
             final ContentProviderOperation oper = diff.get(0);
@@ -354,7 +364,9 @@
         final EntityDelta source = new EntityDelta(values);
 
         // Assert two operations: delete Contact and enforce version
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildAssert(diff);
+        source.buildDiff(diff);
         assertEquals("Unexpected operations", 1, diff.size());
         {
             final ContentProviderOperation oper = diff.get(0);
@@ -380,7 +392,9 @@
         source.addEntry(ValuesDelta.fromAfter(phone));
 
         // Assert two operations: delete Contact and enforce version
-        final ArrayList<ContentProviderOperation> diff = source.buildDiff();
+        final ArrayList<ContentProviderOperation> diff = Lists.newArrayList();
+        source.buildAssert(diff);
+        source.buildDiff(diff);
         assertEquals("Unexpected operations", 2, diff.size());
         {
             final ContentProviderOperation oper = diff.get(0);
diff --git a/tests/src/com/android/contacts/EntitySetTests.java b/tests/src/com/android/contacts/EntitySetTests.java
new file mode 100644
index 0000000..89fb455
--- /dev/null
+++ b/tests/src/com/android/contacts/EntitySetTests.java
@@ -0,0 +1,146 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+package com.android.contacts;
+
+import com.android.contacts.model.EntityDelta;
+import com.android.contacts.model.EntitySet;
+import com.android.contacts.model.EntityDelta.ValuesDelta;
+
+import android.content.ContentProviderOperation;
+import android.content.ContentValues;
+import android.content.Entity;
+import android.provider.ContactsContract.AggregationExceptions;
+import android.provider.ContactsContract.RawContacts;
+import android.test.AndroidTestCase;
+import android.test.suitebuilder.annotation.LargeTest;
+
+import java.util.ArrayList;
+
+/**
+ * Tests for {@link EntitySet} which focus on "diff" operations that should
+ * create {@link AggregationExceptions} in certain cases.
+ */
+@LargeTest
+public class EntitySetTests extends AndroidTestCase {
+    public static final String TAG = "EntitySetTests";
+
+    private static final long CONTACT_FIRST = 1;
+    private static final long CONTACT_SECOND = 2;
+
+    public EntitySetTests() {
+        super();
+    }
+
+    @Override
+    public void setUp() {
+        mContext = getContext();
+    }
+
+    protected EntityDelta getUpdate(long rawContactId) {
+        final Entity before = EntityDeltaTests.getEntity(rawContactId,
+                EntityDeltaTests.TEST_PHONE_ID);
+        return EntityDelta.fromBefore(before);
+    }
+
+    protected EntityDelta getInsert() {
+        final ContentValues after = new ContentValues();
+        after.put(RawContacts.ACCOUNT_NAME, EntityDeltaTests.TEST_ACCOUNT_NAME);
+        after.put(RawContacts.SEND_TO_VOICEMAIL, 1);
+
+        final ValuesDelta values = ValuesDelta.fromAfter(after);
+        return new EntityDelta(values);
+    }
+
+    protected EntitySet setFrom(EntityDelta... deltas) {
+        final EntitySet set = EntitySet.fromSingle(deltas[0]);
+        for (int i = 1; i < deltas.length; i++) {
+            set.add(deltas[i]);
+        }
+        return set;
+    }
+
+    /**
+     * Count number of {@link AggregationExceptions} updates contained in the
+     * given list of {@link ContentProviderOperation}.
+     */
+    protected int countExceptionUpdates(ArrayList<ContentProviderOperation> diff) {
+        int updateCount = 0;
+        for (ContentProviderOperation oper : diff) {
+            if (AggregationExceptions.CONTENT_URI.equals(oper.getUri())
+                    && oper.getType() == ContentProviderOperation.TYPE_UPDATE) {
+                updateCount++;
+            }
+        }
+        return updateCount;
+    }
+
+    public void testInsert() {
+        final EntityDelta insert = getInsert();
+        final EntitySet set = setFrom(insert);
+
+        // Inserting single shouldn't create rules
+        final ArrayList<ContentProviderOperation> diff = set.buildDiff();
+        final int exceptionCount = countExceptionUpdates(diff);
+        assertEquals("Unexpected exception updates", 0, exceptionCount);
+    }
+
+    public void testUpdateUpdate() {
+        final EntityDelta updateFirst = getUpdate(CONTACT_FIRST);
+        final EntityDelta updateSecond = getUpdate(CONTACT_SECOND);
+        final EntitySet set = setFrom(updateFirst, updateSecond);
+
+        // Updating two existing shouldn't create rules
+        final ArrayList<ContentProviderOperation> diff = set.buildDiff();
+        final int exceptionCount = countExceptionUpdates(diff);
+        assertEquals("Unexpected exception updates", 0, exceptionCount);
+    }
+
+    public void testUpdateInsert() {
+        final EntityDelta update = getUpdate(CONTACT_FIRST);
+        final EntityDelta insert = getInsert();
+        final EntitySet set = setFrom(update, insert);
+
+        // New insert should only create one rule
+        final ArrayList<ContentProviderOperation> diff = set.buildDiff();
+        final int exceptionCount = countExceptionUpdates(diff);
+        assertEquals("Unexpected exception updates", 1, exceptionCount);
+    }
+
+    public void testInsertUpdateInsert() {
+        final EntityDelta insertFirst = getInsert();
+        final EntityDelta update = getUpdate(CONTACT_FIRST);
+        final EntityDelta insertSecond = getInsert();
+        final EntitySet set = setFrom(insertFirst, update, insertSecond);
+
+        // Two inserts should create two rules to bind against single existing
+        final ArrayList<ContentProviderOperation> diff = set.buildDiff();
+        final int exceptionCount = countExceptionUpdates(diff);
+        assertEquals("Unexpected exception updates", 2, exceptionCount);
+    }
+
+    public void testInsertInsertInsert() {
+        final EntityDelta insertFirst = getInsert();
+        final EntityDelta insertSecond = getInsert();
+        final EntityDelta insertThird = getInsert();
+        final EntitySet set = setFrom(insertFirst, insertSecond, insertThird);
+
+        // Three new inserts should create only two binding rules
+        final ArrayList<ContentProviderOperation> diff = set.buildDiff();
+        final int exceptionCount = countExceptionUpdates(diff);
+        assertEquals("Unexpected exception updates", 2, exceptionCount);
+    }
+}