tlhIngan writes When moving from an iPhone to something else, if you were an avid user of iMessage, you may find your messages missing, especially from iOS-using friends. Indeed, it has been such a problem that there are even lawsuits about it. While Apple has maintained that users can always switch off iMessage, that only works if you still have your iOS device. Unless one also has other iOS devices or a Mac, they may not even realize their friends have been sending messages that are queued up on Apple's services via iMessage. Well, that problem has been resolved with Apple creating a deregistration utility to remove your phone number from the iMessage servers so friends will no longer send you texts via iMessage that you can no longer receive. It's a two-step process involving proof of number ownership (via regular SMS) before deregistration takes place.