Dash camera for bike

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Dash cameras on cars are all the rage at the moment for evidence in accidents etc etc.
Whats a cheap very small easy to fit cam for a bike.
My criteria would be.
Simple to use.
Easy to turn off on.
Auto switch on when moved?
Long recording time.
Possible to leave on bike.
Small out of the way.

So something that is way smaller than a gopro, can be left on the bike, maybe auto starts when you move.
Ideas?

Send a PM to "Wired". He's a member here and does this stuff for a living, so he should be able to point you in the right direction...

http://www.australian-hayabusa-club.com/...on=profile&uid=4171