In the Android Push Notifications using Google Cloud Messaging GCM - Android Example is there a way to delete the user from the GCM server? On one device I tried entering some google account info but it was for a bogus google account. Somehow it took it as valid and now on that phone when I try to register with a different email account/address it displays already registered with GCM Server.
Android Push Notifications using GCM - Android Example - Delete user?