Ok, so this is sorta old (came out a few months back) but i just rented one at a race a couple weeks back and that thing is seriously cool. i know no one cares cuz its nascar, but it is definitely a nice piece of gadgetry (live video of the race, in car video, in car audio, stats, telemetry... etc etc..)
http://www.engadget.com/2006/02/09/nascar-nextel-fanview-gives-you-live-video-on-race-day/

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