something similar to this already happens in australia
although i'm not sure if they go as far as to do deep packet inspection. basically what the isps do is give you some ridicoulous monthly cap and then partner with (read: charge) companies so that thier content doesnt count against your cap.
in my opinion it is a step backward.....
what's next..... internet long distance charges for sites visited in other countries???
At first I thought everyone on the highway was drunk but then I realized I was driving in Florida