Connect to AT&T's 3G network? ZING!!! Haha, all kidding aside, to be honest, until the first full reviews of the N900 come out, I think it's going to be a bit difficult to see. The main difference that Symbian holds (against other smartphone OS', too) is that it's a phone first, mobile computer second. That's why it works so good for normobs who ease themselves into it.