Will the iPad crush AT&T’s network?

Given the difficulties AT&T’s network had coping with the traffic generated by the iPhone, I wonder if it will be able to keep up with the iPad (even after they announced the revamping of their infrastructure)? After all, Google Maps is going to have to draw a lot more tiles to show your copilot the directions as you drive along. Image sizes will be bigger, and so too will App sizes. Anyone know what size the icons are on the iPad?