I'm currently on a plan with my mother and we split the bill. I wanted to get an iPhone and she agreed to switch to AT&T but she doesn't want an iPhone. I was thinking to just stop by the local Apple store to pick up a phone and activate it and then... I don't know what to do. Can I just buy an AT&T phone online and sign my mom up for it? Is there an option somewhere in the iPhone activation that allows for this? Should I just go to an AT&T store (do they all have iPhones)?