I'm sure this has been covered somewhere on here at some point but I'm not finding anything so far in searching that answers this for me. I have an old and slow iPhone 3G I haven't been using since I've had a work phone. I now have the need to get a personal phone and want to dust off the old 3G iPhone I have, put a Pay as You Go AT&T or other SIM in it and start using it with voice and data until the iPhone 5 comes out, which I'll then buy on contract to replace this one. I don't care what the phone number is or about texting since I've already jailbroken the 3G and have Google Voice fully integrated with it's native dialing and SMS apps. Can I just go into a AT&T store and get a Pay as You Go SIM only with voice and data? What is the cost for something like that?