Motorola Droid Pro

You're never going to see a "Droid" phone on AT&T. And it's not, despite Voyagerboy's assertion, becuase AT&T doesn't like junk. It's because "Droid" is actually a trademark of Lucasfilm, and Verizon has paid $$ (probably $$$$) for the right to use that term.

that doesn't mean there aren't phones using the android operating system on AT&T, although AT&T has managed to cripple certain parts of the operating system to get the phones approved (no loading of non-market apps? Thanks AT&T!) I have a friend who has a captivate, and she loves it, although she admits it's far above her capacity to understand and utilize. But Captivate is VERY comparable to DroidX.

It's also worth pointing out that AT&T is only faster at data in SOME places, and while that may be true for you, it is most assuredly not true for me, and that's without counting 4G, which Verizon has said should be available in any market that has 3G within a couple of years. Where I live, AT&T doesn't even have reliable 3G, how likely are they to get reliable 4G anytime soon?