diff --git a/createRawResources.py b/createRawResources.py
index 44248914e..7fb8be4ab 100755
--- a/createRawResources.py
+++ b/createRawResources.py
@@ -7,6 +7,7 @@ drawable_res_dir = "res/drawable"
 tree_icons_dir = "icons/tree"
 menu_icons_dir = "icons/menu"
 tabs_icons_dir = "icons/tabs"
+others_icons_dir = "icons/others"
 text_search_icons_dir = "icons/text_search"
 data_dir = "data"
 
@@ -35,4 +36,5 @@ shutil.copyfile("icons/fbreader.png", drawable_res_dir + "/fbreader.png")
 process_data_dir("", tree_icons_dir, drawable_res_dir, 0)
 process_data_dir("", menu_icons_dir, drawable_res_dir, 0)
 process_data_dir("", tabs_icons_dir, drawable_res_dir, 0)
+process_data_dir("", others_icons_dir, drawable_res_dir, 0)
 process_data_dir("text_search_", text_search_icons_dir, drawable_res_dir, 0)
diff --git a/icons/others/dropdown.xml b/icons/others/dropdown.xml
new file mode 100644
index 000000000..e5a7b68a0
--- /dev/null
+++ b/icons/others/dropdown.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<selector xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:state_window_focused="false" android:drawable="@drawable/dropdown_normal" />
+    <item android:state_pressed="true" android:drawable="@drawable/dropdown_pressed" />
+    <item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/dropdown_selected" />
+    <item android:drawable="@drawable/dropdown_normal" />
+</selector>
+
diff --git a/icons/others/dropdown_normal.png b/icons/others/dropdown_normal.png
new file mode 100644
index 000000000..73bbbccbc
Binary files /dev/null and b/icons/others/dropdown_normal.png differ
diff --git a/icons/others/dropdown_pressed.png b/icons/others/dropdown_pressed.png
new file mode 100644
index 000000000..c5897fa9d
Binary files /dev/null and b/icons/others/dropdown_pressed.png differ
diff --git a/icons/others/dropdown_selected.png b/icons/others/dropdown_selected.png
new file mode 100644
index 000000000..aeb1fe18d
Binary files /dev/null and b/icons/others/dropdown_selected.png differ
diff --git a/res/layout/network_register_user_dialog.xml b/res/layout/network_register_user_dialog.xml
index dbe40c10b..852d324fd 100644
--- a/res/layout/network_register_user_dialog.xml
+++ b/res/layout/network_register_user_dialog.xml
@@ -58,13 +58,28 @@
 			android:singleLine="true"
 			android:layout_marginTop="5dp"
 		/>
-		<EditText
-			android:id="@+id/network_register_email"
+		<RelativeLayout
 			android:layout_width="fill_parent"
 			android:layout_height="wrap_content"
-			android:singleLine="true"
-			android:inputType="textEmailAddress"
-		/>
+		>
+			<Button
+				android:id="@+id/network_register_email_button"
+				android:layout_width="wrap_content"
+				android:layout_height="wrap_content"
+				android:background="@drawable/dropdown"
+				android:layout_alignParentRight="true"
+			/>
+			<EditText
+				android:id="@+id/network_register_email"
+				android:layout_width="fill_parent"
+				android:layout_height="wrap_content"
+				android:singleLine="true"
+				android:inputType="textEmailAddress"
+				android:layout_toLeftOf="@id/network_register_email_button"
+				android:layout_alignWithParentIfMissing="true"
+				android:layout_alignParentLeft="true"
+			/>
+		</RelativeLayout>
 		<TextView
 			android:id="@+id/network_register_error"
 			android:layout_width="fill_parent"
diff --git a/src/org/geometerplus/android/fbreader/network/AuthenticationDialog.java b/src/org/geometerplus/android/fbreader/network/AuthenticationDialog.java
index ce41183cc..7fb6eaa5d 100644
--- a/src/org/geometerplus/android/fbreader/network/AuthenticationDialog.java
+++ b/src/org/geometerplus/android/fbreader/network/AuthenticationDialog.java
@@ -126,7 +126,7 @@ class AuthenticationDialog extends NetworkDialog {
 	}
 
 	@Override
-	public void prepareDialog(Dialog dialog) {
+	public void prepareDialogInternal(Dialog dialog) {
 		final NetworkAuthenticationManager mgr = myLink.authenticationManager();
 
 		((TextView) dialog.findViewById(R.id.network_authentication_login)).setText(mgr.UserNameOption.getValue());
diff --git a/src/org/geometerplus/android/fbreader/network/CustomCatalogDialog.java b/src/org/geometerplus/android/fbreader/network/CustomCatalogDialog.java
index 73b7acb31..50a151f3f 100644
--- a/src/org/geometerplus/android/fbreader/network/CustomCatalogDialog.java
+++ b/src/org/geometerplus/android/fbreader/network/CustomCatalogDialog.java
@@ -197,7 +197,7 @@ class CustomCatalogDialog extends NetworkDialog {
 	}
 
 	@Override
-	public void prepareDialog(Dialog dialog) {
+	public void prepareDialogInternal(Dialog dialog) {
 		if (myLink != null) {
 			if (myTitle == null) myTitle = myLink.getTitle();
 			if (myUrl == null) myUrl = myLink.getLink(INetworkLink.URL_MAIN);
diff --git a/src/org/geometerplus/android/fbreader/network/NetworkBaseActivity.java b/src/org/geometerplus/android/fbreader/network/NetworkBaseActivity.java
index d6ac52c8a..8eff5c3c0 100644
--- a/src/org/geometerplus/android/fbreader/network/NetworkBaseActivity.java
+++ b/src/org/geometerplus/android/fbreader/network/NetworkBaseActivity.java
@@ -271,7 +271,7 @@ abstract class NetworkBaseActivity extends ListActivity
 
 		final NetworkDialog dlg = NetworkDialog.getDialog(id);
 		if (dlg != null) {
-			dlg.prepareDialog(dialog);
+			dlg.prepareDialog(this, dialog);
 		}		
 	}
 
diff --git a/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java b/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java
index b4a6dd66b..48d2fe780 100644
--- a/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java
+++ b/src/org/geometerplus/android/fbreader/network/NetworkBookInfoActivity.java
@@ -324,7 +324,7 @@ public class NetworkBookInfoActivity extends Activity implements NetworkView.Eve
 
 		final NetworkDialog dlg = NetworkDialog.getDialog(id);
 		if (dlg != null) {
-			dlg.prepareDialog(dialog);
+			dlg.prepareDialog(this, dialog);
 		}		
 	}
 }
diff --git a/src/org/geometerplus/android/fbreader/network/NetworkDialog.java b/src/org/geometerplus/android/fbreader/network/NetworkDialog.java
index 5342434b7..92e84bcb3 100644
--- a/src/org/geometerplus/android/fbreader/network/NetworkDialog.java
+++ b/src/org/geometerplus/android/fbreader/network/NetworkDialog.java
@@ -158,7 +158,6 @@ abstract class NetworkDialog {
 
 	public final Dialog createDialog(final Activity activity) {
 		myActivity = activity;
-
 		final DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
 			public void onClick(DialogInterface dialog, int which) {
 				if (which == DialogInterface.BUTTON_POSITIVE) {
@@ -184,5 +183,10 @@ abstract class NetworkDialog {
 			.create();
 	}
 
-	public abstract void prepareDialog(Dialog dialog);
+	public final void prepareDialog(final Activity activity, Dialog dialog) {
+		myActivity = activity;
+		prepareDialogInternal(dialog);
+	}
+
+	protected abstract void prepareDialogInternal(Dialog dialog);
 }
diff --git a/src/org/geometerplus/android/fbreader/network/RegisterUserDialog.java b/src/org/geometerplus/android/fbreader/network/RegisterUserDialog.java
index 10db2b1da..32581901e 100644
--- a/src/org/geometerplus/android/fbreader/network/RegisterUserDialog.java
+++ b/src/org/geometerplus/android/fbreader/network/RegisterUserDialog.java
@@ -19,16 +19,23 @@
 
 package org.geometerplus.android.fbreader.network;
 
+import java.lang.reflect.*;
+import java.util.ArrayList;
+import java.util.List;
+
 import android.app.Dialog;
 import android.app.AlertDialog;
 import android.view.View;
+import android.widget.Button;
 import android.widget.TextView;
+import android.content.Context;
 import android.content.DialogInterface;
 
 import org.geometerplus.zlibrary.ui.android.R;
 
 import org.geometerplus.zlibrary.ui.android.dialogs.ZLAndroidDialogManager;
 
+import org.geometerplus.zlibrary.core.resources.ZLResource;
 import org.geometerplus.zlibrary.core.util.ZLBoolean3;
 
 import org.geometerplus.fbreader.network.NetworkErrors;
@@ -39,15 +46,18 @@ class RegisterUserDialog extends NetworkDialog {
 
 	private String myLogin;
 	private String myPassword;
+	private String myConfirmPassword;
 	private String myEmail;
 
+	private ArrayList<String> mySystemEmails = new ArrayList<String>();
+
 	public RegisterUserDialog() {
 		super("RegisterUserDialog");
 	}
 
 	@Override
 	protected void clearData() {
-		myLogin = myPassword = myEmail = null;
+		myLogin = myPassword = myConfirmPassword = myEmail = null;
 	}
 
 	@Override
@@ -59,6 +69,46 @@ class RegisterUserDialog extends NetworkDialog {
 		((TextView) layout.findViewById(R.id.network_register_confirm_password_text)).setText(myResource.getResource("confirmPassword").getValue());
 		((TextView) layout.findViewById(R.id.network_register_email_text)).setText(myResource.getResource("email").getValue());
 
+		mySystemEmails.clear();
+		collectEMails(myActivity.getApplicationContext(), mySystemEmails);
+
+		if (!mySystemEmails.isEmpty()) {
+			final DialogInterface.OnClickListener listener = new DialogInterface.OnClickListener() {
+				public void onClick(DialogInterface dialog, int which) {
+					if (which >= 0 && which < mySystemEmails.size()) {
+						myEmail = mySystemEmails.get(which);
+					}
+					dialog.dismiss();
+				}
+			};
+
+			((Button) layout.findViewById(R.id.network_register_email_button)).setOnClickListener(new View.OnClickListener() {
+				public void onClick(View v) {
+					myLogin = ((TextView) layout.findViewById(R.id.network_register_login)).getText().toString().trim();
+					myPassword = ((TextView) layout.findViewById(R.id.network_register_password)).getText().toString();
+					myConfirmPassword = ((TextView) layout.findViewById(R.id.network_register_confirm_password)).getText().toString();
+					myEmail = ((TextView) layout.findViewById(R.id.network_register_email)).getText().toString().trim();
+
+					final int selected = mySystemEmails.indexOf(myEmail);
+					final ZLResource buttonResource = ZLResource.resource("dialog").getResource("button");
+					final AlertDialog dialog = new AlertDialog.Builder(myActivity)
+						.setSingleChoiceItems(mySystemEmails.toArray(new String[mySystemEmails.size()]), selected, listener)
+						.setTitle(myResource.getResource("email").getValue())
+						.setNegativeButton(buttonResource.getResource("cancel").getValue(), null)
+						.create();
+
+					dialog.setOnDismissListener(new DialogInterface.OnDismissListener() {
+						public void onDismiss(DialogInterface dialog) {
+							myActivity.showDialog(myId);
+						}
+					});
+
+					myActivity.dismissDialog(myId);
+					dialog.show();
+				}
+			});
+		}
+
 		return layout;
 	}
 
@@ -67,7 +117,7 @@ class RegisterUserDialog extends NetworkDialog {
 		AlertDialog alert = (AlertDialog) dialog;
 		myLogin = ((TextView) alert.findViewById(R.id.network_register_login)).getText().toString().trim();
 		myPassword = ((TextView) alert.findViewById(R.id.network_register_password)).getText().toString();
-		final String confirmPassword = ((TextView) alert.findViewById(R.id.network_register_confirm_password)).getText().toString();
+		myConfirmPassword = ((TextView) alert.findViewById(R.id.network_register_confirm_password)).getText().toString();
 		myEmail = ((TextView) alert.findViewById(R.id.network_register_email)).getText().toString().trim();
 
 		if (myLogin.length() == 0) {
@@ -76,9 +126,10 @@ class RegisterUserDialog extends NetworkDialog {
 			sendError(true, false, err);
 			return;
 		}
-		if (!myPassword.equals(confirmPassword)) {
+		if (!myPassword.equals(myConfirmPassword)) {
 			final String err = myResource.getResource("differentPasswords").getValue();
 			myPassword = null;
+			myConfirmPassword = null;
 			sendError(true, false, err);
 			return;
 		}
@@ -123,11 +174,16 @@ class RegisterUserDialog extends NetworkDialog {
 	}
 
 	@Override
-	public void prepareDialog(Dialog dialog) {
-		((TextView) dialog.findViewById(R.id.network_register_login)).setText((myLogin != null) ? myLogin : "");
-		((TextView) dialog.findViewById(R.id.network_register_password)).setText((myPassword != null) ? myPassword : "");
-		((TextView) dialog.findViewById(R.id.network_register_confirm_password)).setText((myPassword != null) ? myPassword : "");
-		((TextView) dialog.findViewById(R.id.network_register_email)).setText((myEmail != null) ? myEmail : "");
+	public void prepareDialogInternal(Dialog dialog) {
+		dialog.findViewById(R.id.network_register_email_button).setVisibility((mySystemEmails.size() > 1) ? View.VISIBLE : View.GONE);
+		if (mySystemEmails.size() == 1 && (myEmail == null || myEmail.length() == 0)) {
+			myEmail = mySystemEmails.get(0);
+		}
+
+		((TextView) dialog.findViewById(R.id.network_register_login)).setText(myLogin);
+		((TextView) dialog.findViewById(R.id.network_register_password)).setText(myPassword);
+		((TextView) dialog.findViewById(R.id.network_register_confirm_password)).setText(myConfirmPassword);
+		((TextView) dialog.findViewById(R.id.network_register_email)).setText(myEmail);
 
 		final TextView error = (TextView) dialog.findViewById(R.id.network_register_error);
 		if (myErrorMessage == null) {
@@ -142,4 +198,35 @@ class RegisterUserDialog extends NetworkDialog {
 		dlgView.invalidate();
 		dlgView.requestLayout();
 	}
+
+
+	private static void collectEMails(Context context, List<String> emails) {
+		try {
+			final Class<?> cls$AccountManager = Class.forName("android.accounts.AccountManager");
+			final Class<?> cls$Account = Class.forName("android.accounts.Account");
+
+			final Method meth$AccountManager$get = cls$AccountManager.getMethod("get", Context.class);
+			final Method meth$AccountManager$getAccountsByType = cls$AccountManager.getMethod("getAccountsByType", String.class);
+			final Field fld$Account$name = cls$Account.getField("name");
+
+			if (meth$AccountManager$get.getReturnType() == cls$AccountManager
+					&& meth$AccountManager$getAccountsByType.getReturnType().getComponentType() == cls$Account
+					&& fld$Account$name.getType() == String.class) {
+				final Object mgr = meth$AccountManager$get.invoke(null, context);
+				final Object[] accountsByType = (Object[]) meth$AccountManager$getAccountsByType.invoke(mgr, "com.google"); 
+				for (Object a: accountsByType) {
+					final String value = (String) fld$Account$name.get(a);
+					if (value != null && value.length() > 0) {
+						emails.add(value);
+					}
+				}
+			}
+		} catch (ClassNotFoundException e) {
+		} catch (NoSuchMethodException e) {
+		} catch (NoSuchFieldException e) {
+		} catch (IllegalAccessException e) {
+		} catch (IllegalArgumentException e) {
+		} catch (InvocationTargetException e) {
+		}
+	}
 }