United Airlines is now the latest airline to announce in-flight broadband. The provider is Gogo. Pricing looks a bit like this:
Whether on United or the four other U.S airlines Aircell now has agreements with, Gogo costs passengers $9.95 on flights of three hours or less, and $12.95 on flights of more than three hours. The Gogo service involves 92 EVDO cell sites aimed ever upward, designed to provide 2Mbps+ connectivity to each Gogo enabled plane that passes overhead. VoIP is banned, though VPN connectivity works.
via DSLReports