Hi, the Radio Shack near me is keeping a waiting list for the $50 iPhone deal, and they're having more in stock tomorrow, at which point I plan to picking one up. I'm currently on a family plan and not eligible for upgrade, but another line (a relative living away from me) is eligible. I plan to get the iPhone on that account and do an upgrade swap after that. What is the exact process for this? As I understand, Radio Shack will activate the phone at the point of purchase. They suggested I take it to an AT&T store and have the SIM switched. My question is, does that mean my relative's phone will be disabled until I go to an AT&T store and perform the swap? Will I need that other phone at all during this whole process, or will it automatically reactive after the swap is done?