I wish I had a laptop to test it with! I do know, however, that some people have managed to get WiFi signals in a moving aircraft 2500ft above a city, using a commerically available antenna, so perhaps we shouldnt write the idea off just yet.

http://quickwired.com/kallahar/stories/2003-Dec10/warflying.phphttp://quickwired.com/kallahar/stori.../warflying.php