Via Smart Mobs--United Airlines will be offering wi-fi on flights:

UNITED Airlines has become the first US carrier to get regulatory approval to offer wireless Internet, or Wi-Fi access, on its airborne domestic flights in the US.

United said the Federal Aviation Administration granted approval for the service to be offered by Verizon Airfone for passenger and crew use of wireless technology.
United and Verizon said that approval was granted after the two companies successfully demonstrated that the usage of the wireless technology known as 802.11 within the cabin does not affect the aircraft's operation.