[The Godfather]

If I signed an unlimited 3G contract, and got a subsidized iP4 as incentive, does that mean that if the contract changes, I am free to stop making monthly payments?

This would not happen to them if either: they grandfather contracts bonafide, or they don't grandfather contract terms at all.

[Cold Warrior]

Given that att is going to throttle unlimited data, they're still abiding by the terms. I bet there's no guarantee of speed or QOS. Additionally, SCOTUS hobbled easy class actions recently with an att arbitration case, so it's unlikely anyone objecting would prevail.

[The Godfather]

Their TV commercials are a strong promise of speed. How can they be the fastest, if in fact their are the slowest?

[mduell]

I think they're being generous about it to avoid more negative PR and fleeing users.

Any trivial infraction of a contract does not render the remainder moot.