Starbucks will offer free Wi-Fi from AT&T at its locations in the United States, but only to customers who have the company's rewards card and use it at least once a month for purchases. In fact, you need to purchase a so-called "Starbucks Card", which is essentially a prepaid... coffee card. Furthermore, the card has to be registered online for the rewards program.

In addition, AT&T will send you four solicitation e-mails per year. The "free" wireless is actually two consecutive hours a day. This appears to mean that you can only connect once a day, for maximum two hours. Also, new members also receive a voucher for a free drink.

Starbucks Card holders who have enrolled in the Starbucks Card Rewards program get the benefit of complimentary syrup and milk for certain drinks and free refills of hot and cold coffee as well as a free "tall" beverage with the purchase of a pound of whole bean coffee.

The service was first announced in February this year, when Starbucks ended a partnership with T-Mobile and started a brand new one with AT&T, promising to offer consumers Wi-Fi connectivity in all the 7,000 Starbucks locations in the U.S.

In February this year, AT&T unveiled that customers who will buy the Starbucks card will receive two hours of free wireless access. Those who want more than two hours have two options. They could buy another additional two hours for $3,99 or a monthly membership which costs $19.99 and includes access to any of AT&T's 70,000 hot spots in 89 countries around the world.