Quick question. I have a white iPhone 5 32GB that I bought a week or so after release. (With ATT). My wife has decided she wants a 5 as well. If I buy a new 64GB phone on a new contract, and want to use the 64GB for me, and give the 32GB to my wife, are there any issues in swapping phone numbers on phones contract wise? Figured I'd ask here as I generally find better answers than calling ATT.