Haha, I found my old iphone 3G charged it up and realized... "this thing doesn't even have a video camera!!" so I jailbroke it, installed Cydia and recorded something like 640x480 15 frames per second onboard. It actually turned out pretty awesome!
So then I took my Samsung Galaxy S2 and mounted it, took it for a quick run and BOOM phone battery is dead. Uh yi yi after a couple hours of messing around I finally get it working and the battery dies, go figure.
I'll upload the vids and post'm here shortly, curious though - anyone else do this? A ziptie and a phone.. pretty simple!