Hi, My iPhone 3g(ATT) died and I am waiting for the iPhone 5 to arrive. I am looking for a cheap phone that can accept the iPhone 3g SIM card for calls. Someone mentioned the GO PHONE from best buy. I see a couple on the BB site. Will any of these work with iPhone SIM? GoPhone R225 Mobile Phone ($15) Samsung A107 $10 AT&T GoPhone - Pantech P7040P No-Contract ($60) AT&T GoPhone - Samsung A197 No-Contract Mobile ($40) AT&T GoPhone - Nokia 2320 No-Contract Mobile ($15) Is there anything bad that can happen if I transfer SIM? Do I need to call ATT to switch SIMS?