Free wi-fi finally landed at Minneapolis-St. Paul International Airport today. Advanced Wireless Group, which offers wireless internet at Atlanta, Boston, Los Angeles and other airports around the country, began providing the service at the airport today. Users may encounter a video advertisement before they can go online for a free 45-minute session; advertising revenue will offset the cost of the service. A commercial-free service, with four times the speed, is available for $2.95 per 24 hours. Before the shift to AWG, all wi-fi use at MSP was fee-based. AWG is upgrading the existing equipment to accommodate the anticipated growth in the number of users at the airport, where the public terminal space covers 2 million square feet. For details about how to access the wi-fi, go here.