2 Carriers; One Apple ID?
I'm wondering if anyone knows the answer to this question, and forgive me if it's been asked before. My iPhone carrier is AT&T and my wife is currently on an old Nokia with T-Mobile. We are considering taking my old iPhone 3GS (not currently in use, but formerly with AT&T) and unlocking it for her T-Mobile account, but I don't know if the two different carriers can use our current Apple ID. If need be, she (of course) can start over with a new Apple ID, but it sure is nice keeping one in the family right now.
So . . . is it possible for one Apple ID to have two iPhones on it; one using AT&T and the other using T-Mobile?
Thanks in advance for your answer.