Wow! A nice idea. Do you have video set up on some kind of "if/then" trigger, or do you actually film the whole of every journey you make?
I have a pretty long drive to work in the afternoons, maybe 50km or more. Google Maps says it should take 45mins (Highway 100km), but it always ends up being roughly an hour. And that's cause of the traffic. In fact, we get to a couple stand-stills. Even funnier when its infront of the Speed Camera.
I had the cheap $5 windshield holder from eBay and used to record it from
start to end.
I guess you could set it up to trigger in case of an event, such as feedback from the accelarometre. It shouldn't be too hard, and I bet there's already Apps for it. But what if it fails and you miss the shot?
I rather be extra careful, and just delete the recording when I get to work.
The only thing/problem is that it records in front of you... or the direction you set it up and its a narrow view. If you are hit in the back, its the fault* of the car behind you so you need to make sure they dont escape and you get their plate/license/insurance details. However, if you are hit in the front, they classify it as your fault. Unless you can prove that the other car was driving reckless and trying to overtake you when you had no space to give. Then you can dispute it, and make them cover your insurance. Which this setup is perfect for. Cause in Sydney 90% of drivers are morons, and I rather be safe than sorry.
After awhile, I stopped doing it, and the cradle broke (my fault). So now I'm at risk again until a new one arrives.
And I do say at risk, because there's been at least 3 accidents that occurred right next to me within this 18month gap. No wonder my insurance has such high premium ($1,000 annually for partial-cover, thats a joke).