Hi i currently have a 3g iphone. It is unlocked and jailbroken. I use cincinnati bell for the carrier. Everything works great. i can recieve pictures, call, text, and use edge. I was wanting to use the 3g that the phone is capable of. I dont currently have a 3g sim card. how do i go about going into the store and getting a 3g sim card? will they simply hand one over to me? or what Thanks for all the advice and opinions.