GoBoingo for Mac works on MacBooks running Mac OS X 10.4 (Tiger) and 10.5 (Leopard), and PowerBooks running Mac OS X 10.4. (GoBoingo! is also available for Windows, too, and runs on Vista, XP, and Windows 2000.)
Los Angeles-based Boingo says usage reports from airport Wi-Fi networks it operates show a steady increase in Wi-Fi connections from MacBooks and PowerBooks. As of January 2008, nearly 20% of usage at those airports was from Mac laptops, an increase of 30% since January 2007. Boingo operates Wi-Fi networks at 30 major U.S. and U.K. airports, including Atlanta-Hartsfield, JFK and LaGuardia in New York, Chicago's O'Hare and Heathrow in London.