I just got a text message on my iPhone telling me about this; has anyone else?
From here
From here
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.
iPhone users, get started with Wi-Fi
Activate Wi-Fi from the settings icon on your iPhone
Select "attwifi" from the list of available networks
Enter your 10-digit mobile number and check the box to agree to the Acceptable Use Policy. Tap 'continue'
You will receive a text message from AT&T with a secure link to the AT&T Wi-Fi hotspot. You will not be charged for the text message.
The SMS link will only be valid for 24 hours at the location it was requested. Another request must be submitted when using another hotspot location.
Open the text message and tap on the link for 24-hour access to the AT&T Wi-Fi hotspot