Free WiFi is becoming ubiquitous:

Barnes & Noble, the largest bookstore chain in America, allows patrons to
surf for free, in a deal with AT&T announced this August.

Borders, the second-largest bookstore chain in the United States, will
provide free WiFi in about 500 of its U.S. stores. The company is working
with Verizon to equip those stores with Wi-Fi, with service available this
month.

Verizon is partnering with Boingo to deliver free WiFi access. Free Verizon
Wi-Fi hot spot locations include hotels, airports, restaurants, coffee
shops, retailers, convention centers and public locations across the U.S.
Bonigo network of

Wi-Fi hotspots – which includes more than 100,000 locations around the world – IF you’re a Verizon FiOS or DSL broadband subscriber.

All U.S. company-operated Starbucks hot spots now support AT&T Wi-Fi
service. A $5 or more Starbucks Card, will get you two consecutive hours of
complimentary AT&T Wi-Fi daily.

Google is partnering with Virgin America to provide free WiFi on every
Virgin America flight between November 10, 2009 and January 15, 2010,

Satellite broadband provider Row 44 and JiWire are delivering free in-flight
Wi-Fi, supported by advertising.