What kind of speeds are you folks getting with AT&T’s 3G network? i’ve been happy with my iPhone 3GS. The Dallas/Fort Worth market has pretty good 3G coverage from both AT&T and T-Mobile, and the speeds seem decent.
Here’s a screenshot of one of my recent speed results:

You can take a screenshot on an iPhone by doing the following:
* Press and hold the home button
* Press the power button
The screen will flash, and the iPhone will make the shutter sound. The screenshot will be under “Photos.”