Most of the US iPhone users are getting notified through a text message that they can use free Wifi access at all AT&T hotspots including Starbucks!

The message is pretty clear:
AT&T knows Wi-Fi is hot, and FREE Wi-Fi is even hotter. Which is why FREE AT&T Wi-Fi access is now available for Apple iPhone at thousands of hotspots nationwide, including Starbucks*. Users can relax and access music, email and web browsing services with their favorite blend in hand from the comfort of their nearest location. For information visit www.att.com/attwifi.

Some users already confirmed that the connection speed was definitely faster than 3G and a nice little benefit if you happen to be camped out at a Starbucks, McDonalds, etc.