Hi, I hope this is the right place to ask my question. I recently upgraded my first generation Iphone to the 3g. I would like to give my Dad my old 1st gen Iphone. My Dad will not be using text or the data. He would just like to use it as a phone only and not be on a contract. I was thinking that since the phone has already been activated-what happens if I just bought an att to go phone and took the SIM card out of that package and put it in the 1st gen iphone for him? Is that possible since he would only be using the phone portion? Thank you in advance for any and all help!!!