Yes, single device and app. About the different package name, correct me if I'm wrong, but I thought that GCM notifies only the application with the specified package name. So even if I did have the same application twice (firstly with `com.hellotest1`, secondly with `com.hellotest2`) I should still get just single message into the application with package name `com.hellotest1` and single message to the application with package name `com.hellotest2` and not a duplicate message to either of the two. Isn't that right?