AT&T is considering on ways to limit its users' usage on internet bandwidth due to the recent surge in iphone usage. This basically translates to "we have a crappy network. We can't handle the volume of customers and now we want more money".
I think this is going to bring a lot more popularity to the Droid phones on Verizon's network, seeing how we have truly UNLIMITED bandwidth on the 3g network(no bandwidth caps!). One more reason I love my Droid phone.