Exactly, I want to see what the AT&T network looks like the most heavy iPhone users move on. For several years Verizon network had minimal smart phone users, but after Android and iPhone usage ramps up they could have the same sorts of issues.
PS: I want to stick with AT&T because Verizon has shitty reception around around my parents house. But, where I live and work the AT&T data network is heavy oversubscribed.