Richard Gaywood on how AT&T is going to start dealing with unauthorized tetherers:

It goes on to state that users can either terminate their unauthorized tethering usage before March 27, or they will be automatically moved to AT&T’s DataPro plan, which includes tethering and costs an extra $20 per month.

Really the only thing that should surprise people is how long it took AT&T to crack down on this. Also, if you have unlimited data right now and AT&T moves you to DataPro, then you will loose that unlimited data plan for, well, ever.