dan@sprint.com response I got

[Yibrushn]

Please stop with the "I'm using just as much bandwidth on my TP2" if you buy a sports car(EVO) you will not drive it the same way you do a sedan(TP2) and if you don't NEED a sports car and don't want to pay extra for the premium gas then stick with the accord! Also your behavior changes as the capabilities of the phone change. when I had a dumb phone i didn't surf the net at all now i do it a lot! when you take pictures worth taking you'll be sharing them more. the EVO will change the way you use your phone. and invariably increase your bandwidth consumption.