For whatever reason, AT&T's site is slow as grim death, so loading the new map may take you a while.
Remember: AT&T is constantly expanding its 3G coverage, and says it'll have the top 350 cellphone markets covered before the end of the year.
[Update]: Hello everyone. I thought I'd poke in here and give you an update on the iP3G. AT&T's 3G network is wicked fast and I'm thoroughly impressed with it. I had my doubts considering I live in a concrete jungle and the 2G had a lot of problems connecting in the past. Kudos AT&T. -Peter