FFS will someone hurry up and invent a tracker system for a bike. I know they exist (the ones that SMS you with location co-ordinates) but not small enough to fit in a downtube.
http://www.engadget.com/2008/04/14/zoombak-universal-gps-locator-tracks-down-your-other-stuff/
Not cheap, mind.
@mr_tom started
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http://www.engadget.com/2008/04/14/zoombak-universal-gps-locator-tracks-down-your-other-stuff/
Not cheap, mind.