I will be getting two iPhone 5s - One for myself and One for my wife. One (32GB) is already preordered through AT&T and will be delivered after 2-3 weeks I will be buying one on launch day (16GB) at an AT&T store. Both the phones will be under my name. Once I receive the preordered phone, I am planning to swap the SIM cards since I need the 32 GB and my wife wants the 16 GB. Would the SIM swap work without any issues?