at the local McDonald's, and it worked out perfectly. Did the iNetwork test: 1330 kbps with AT&T WiFi Hotspot; and 745.7 kbps with EDGE Network. Huge difference! 
Would you mind sharing how you were able to get access?
I've tried it a couple times and could not get on the network. The AT&T docs seem to indicate that I need some sort of connection manager, which only works on Win*. I seem to be unable to find the doc, or get the right customer service agent, that tells me how to get my MacBook Pro onto an AT&T Hotspot. But it looks like you have. Care to share the procedures?
Thanks for your help.