Mounting would be easy enough. Just pick up a modular GPS mount from any number of the online retailers. The difficulty would be in weather-proofing the unit such that it still provided enough visibility so as to be useful in low-light situations.
Also, with the potential mounting locations, my guess is that you'd have a lot of interference with the camera from the brake light.
another thing that i believe would be a problem would be the vibration out on the highway at high speeds the vibration reduces but in town these bikes shake to much for a lense. abuddy had a camera that he paid high dollar for and put it on a duc and he said unless he was hauling ass all he saw was a bunch of blurr spots cause of the vibes from his duc.