Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
GMs do not require your UUID to be registered and I found even with older versions I forget to register my UUID on my iPad (Wi-Fi) and it installed with no issues. It seems only 3G iPads need to register your UUID on a developer account.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.