Although a San Antonio PR guy spotted the AT&T trucks at a Starbucks last week, this press release makes it official: AT&T and Starbucks co-announced today that San Antonio--AT&T's corporate HQ town--is the first city to be unwired with AT&T's flavor of Wi-Fi in Starbucks stores. Other markets will follow this year, although, as before, there's no list of markets nor a time table beyond the notion that "it will continue through 2008."

The companies also said that AT&T high-speed DSL and fiber customers will gain free access at 7,000 Starbucks starting May 1, but as other eagle-eyed readers have noted, that option is already available on any T-Mobile login page that anyone's written me about or I've seen. The difference will be that a separate SSID called ATTWiFi will be available as an option for network selection, presenting a different gateway page.