Hey, guys! I am curious to see if anyone has done this. Let me explain what happened. I purchased an iPhone 4S on the 14th, then a week and a half later, exchanged it for a Galaxy S2. I encountered some problems with the S2, with the phone functionality not working on it, so I swap it out for another S2. Now, I am having problems with this S2 battery life. Would AT&T allow me to exchange my phone for an iPhone 4S, or am I pretty much stuck with the S2? If I'm not mistaken, you can only do one exchange (for another) phone within the 30 days. I have done that, by going from 4S to S2. Do they allow customers to do it again? Thanks!