ATT wi-fi @ Starbucks has been working in various spots in Calif for several weeks for me:
-Laptop w/ wifi on, open browser, type in t-mobil.com. -Page appears with T-Mobile log-in screen AND an AT&T login button. -ATT login button opens window for sign-on with ATT dsl account info. -Your online.
Ditto for me. I don't know if the coming roll out is what we've already seen or a complete replacement of the current landing page.
I'm also very curious about wether they're replacing their back haul. As I understand it the T-Mobile sites are currently served by expensive and relatively slow T1 connections. As AT&T is also an ISP in a large part of the footprint one would think they'd use their own DSL lines.
I wonder why T-Mobile never used the Starbucks relationship to broaden their cellular footprint? A pico-cell on every Starbucks would have gone a long way. -- OS X on a PC? Yup! »en.wikipedia.org/wiki/OSx86