My advice would be buy a cheap phone through AT&T to make sure you like the service. if you do and decide to keep AT&T, you can swap out the phone for the iPhone. This way if you don't like AT&T you don't have a 10% restock charge. Saw this answer the other day over at HoFo and it made sense. good luck! I was one of the ones who braved the 15 degree temps for 3 hours to come back to Verizon from the iPhone and needless to say, I went back with AT&T and the iPhone 3G and shortly after, forked out another $500 for the 3GS, in my opinion, well worth it
