Originally Posted by DanAirUk

OnAir and AeroMobile (http://www.aeromobile.net/) are in various stages of development, both are using Inmarsat satellites to carry the service, as Inmarsat is already in widespread use for Cockpit voice and data.

Right now, there is very little available. AeroMobile have been trialing the GPRS Picocell data service with Quantas, but only in Austrailia. Inmarsat are starting their Broadband service commercially in November and many airlines have committed to this. However, knowing the time it takes to get the kit on Aircraft as well as the licensing issues, I would not expect to see much until well into 2008.