The Scoop on Starbucks Wifi

I recently talked with a barista about the new AT&T service at Starbucks, and he gave me some great info:
- If you have an AT&T account for home internet access, phone, and I think even mobile phone, you can access Starbucks Wifi free.
- If you register a Starbucks card (not a credit card, just the gift card) online, you get lots of freebies, one of which is free Wifi access, at least 2 hours per week.

I think you can also pay, but that seems silly given the options above.