So here is the deal. I have an iPhone 4 and my girlfriend has a 3G. She was eligible to upgrade and I'm not. What we want to do is give me the 4S and give her my old 4. So here is what I was thinking: - Wipe my 4 - Take out my 4 SIM - Put the 4S fresh SIM into the iPhone 4 - Have her plug in the 4 with the new SIM into her Macbook and it should see the 4 as a new phone and copy her stuff over - Put my SIM in the 4S and repeat Am I right that will work? If not, I was also thinking of just having her upgrade and swapping out the SIMs.