I am using brand new LG Optimus G AT&T. I don't have contract with AT&T at all ($550). I could legally unlock the phone and use the phone on T-mobile.
The phone connects to attwifi hotspot and I cannot remove it. I cannot forget the network. Because of that I continuously connect to unussable network. I can turn off wifi. Right. I can turn it off. But what if I want to use Wifi. Let's say there are wifi AP that I want to connect to and attwifi nearby. It often connects to attwifi.
I would be upset even if I could use attwifi because it will require password and disconnects all data communication before putting the password. It's okay only if I want to connect to attwifi. Why can't I opt out? Why it's unforgottable? Evil evil evil.
And there's a serious security problem, too. If some sneaky guys make AP named attwifi, the device will also connect to the network, even if I don't want attwifi at all.
I don't know who made this decision, but definitely it's a very evil decision.
I used to be AT&T prepaid user in the past. I don't use AT&T becasue I couldn't print out the previous recipt. For prepaid, it wasn't possible. And it disconnected my SIM card becasue I wasn't using it for months while staying outside of US. (was less than 6 month)