I hope this gets answered by the time I get to work. I have been without a phone for a while now. Basically, I used a friend's dad's upgrade to get the new 4S. I went through the process of activating the iPhone (I stuck my micro sim from my old 4 into the 4S). At the end of the activation process, it says are you sure this information is correct? **And shows HIS information. Even though MY sim card is the one in the phone. I understand that it is using Apple's servers to get that information based off the IMEI. So my question is, if I click NEXT, will it deactivate HIS iPhone 3G sim card? Forcing him to have to go to AT&T to get a new one? Is there any way around deactivating his sim card?