I've been a gophone user for many years now, had the same SIM in my old Razor V3 for a couple years now, my wife's gophone number is even older. We aren't big cell users, in fact I've put $100 on the phone and six months later had $50 left...although when you start sending texts that cost starts to go up at 20 cents a message sent/received. I own an ipod touch, and I've been carrying around the Touch and my Razor...only the razor is dying and its nice to be able to send some texts or check email when you aren't near a wifi signal, and of course...carrying around 2 chargers, etc...truly sucks. But I'd like an iphone...what I don't need is an iphone cell plan at $40 a month. With the calls I make, I might use $10 a month, it just happens that several of the people i talk with are also on ATT..and that means those calls are free. SO: I'm thinking of selling the ipod touch and buying an iphone 3GS. Can I simply take my old SIM cards out of my existing motorola and samsung gophones and pop them into a couple of purchased-on-ebay 3GS iphones (I'd buy 2 GS's, one for me and one for the wife) IF that can be done, what about a data plan? I mean the iphone is feature rich, and while I don't care about using the GPS, what about getting emails, texting, using AIM instant messenger...looking up movie times or finding the address to a restaurant.....does that all count against my gophone minutes or does it require the purchase of a data plan for the iphone? In other words...what can/can't I do using it as a GoPhone, and if I want to use it more, can I get something like a $25 data plan per month. And just use the gophone minutes as required for talking... I need to know what will work, what wont..and what my options are. Thank you all for whatever information you can give me, its appreciated in advance!