I want to upgrade to the 2nd generation iPhone when it comes out. Seems it could be soon given the rumors. I will give the old one to a family member and they will receive a new number from AT&T while I switch my current number to the new model. My question is, if anyone has been through this process yet, upgrading to a 16GB phone, how did it work? I'm assuming you plugged in your 16GB phone, activated it, which made your old phone dormant. How then, did you get a new number in the old phone? Did you restore it to its original state, then go through the activation process? Thanks.