they did it with me and I only play ah. I would call complain about it then my speed would go up for a month or two, then slowly go down. I was paying for 3.0 but getting 1.2 if that. I finally got sick of it called time warner (company which I hate) and got their internet cable service and cancelled att phone and internet and saved myself 30 bucks a month. i have noticed the same thing also on cell phones from verizon, once your get close to the 2 year mark, the internet starts getting really slow. I am assuming is their way of forcing you to get another phone and another 2 year contract. I had the storm which always had great reception then withing 2 months it went to being so slow it was ridicules. I upgraded to the droidx and rooted it. but they'll find a way to throttle the phone on their end.
semp
