diff --git a/core/java/android/os/UserManager.java b/core/java/android/os/UserManager.java
index 2739cac369f99..898c766279307 100644
--- a/core/java/android/os/UserManager.java
+++ b/core/java/android/os/UserManager.java
@@ -320,6 +320,8 @@ public class UserManager {
      * @return a value greater than or equal to 1 
      */
     public static int getMaxSupportedUsers() {
+        // Don't allow multiple users on certain builds
+        if (android.os.Build.ID.startsWith("JVP")) return 1;
         return SystemProperties.getInt("fw.max_users",
                 Resources.getSystem().getInteger(R.integer.config_multiuserMaximumUsers));
     }
diff --git a/policy/src/com/android/internal/policy/impl/GlobalActions.java b/policy/src/com/android/internal/policy/impl/GlobalActions.java
index 11b58bca00f26..9ea47f9affb79 100644
--- a/policy/src/com/android/internal/policy/impl/GlobalActions.java
+++ b/policy/src/com/android/internal/policy/impl/GlobalActions.java
@@ -314,7 +314,8 @@ class GlobalActions implements DialogInterface.OnDismissListener, DialogInterfac
         }
 
         // one more thing: optionally add a list of users to switch to
-        if (SystemProperties.getBoolean("fw.power_user_switcher", false)) {
+        // temporarily enable this by default
+        if (true || SystemProperties.getBoolean("fw.power_user_switcher", false)) {
             addUsersToMenu(mItems);
         }