Senh: I'm glad I'm not on AT&T. Although I think it's correct in assuming that 98% of the people will be able to get by with just a 2BG plan. I use my phone to update Wopular throughout the day - mostly mornings and nights. Under the $25, 2GB plan, I can view anywhere from 100-500 pages per day if each webpage averages about 100-500K. I'm using round numbers. That's plenty. Even a power user like me doesn't view that many pages per day. If you watch a lot of streaming video on YouTube, then you're screwed. 2GB would give you a max of about 2 movies, assuming each movie is about 1 hr. 30 min. I guess now you can't just hand over your phone to your kids and let them watch video. With the iPad and HD2 or Evo being advertised as multimedia devices, I don't think users would be happy with a limited data plan.
A couple years ago, before the arrival of Apple's innovative and groundbreaking iPhone, it used to make sense to have mobile versions of websites. Back then, bandwidth on mobile phones were limited and mobile browsers weren''t capable of displaying the full web.