Feedback not on the concept but on your implementation. Since you are saving the UUID to SharedPreferences, you can simply implement a Backup Manager [1] to ens

Feedback not on the concept but on your implementation. Since you are saving the UUID to SharedPreferences, you can simply implement a Backup Manager [1] to ensure this is persisted for the user across application installs. It won't be tied to a device but to a user based on their Market identity. [1]: http://developer.android.com/guide/topics/data/backup.html#SharedPreferences http://developer.android.com/guide/topics/data/backup.html#S...