It's impossible that the iPhone AIM app is using SMS messages. Case in point: I don't have a SIM card in my iPhone (it was unlocked by another iPhone users SIM card) and I use the AOL app all the time on my wifi network. I'd like to see how AT&T could bill me for that.
The AT&T employees simply don't realize the iPhone isn't one of the crappy phones they're used to working with.
The AT&T employees simply don't realize the iPhone isn't one of the crappy phones they're used to working with.