Driveaspora

I just went on a 10 hour car trip and the traffic wasnt too bad so i spent a lot of time balancing my speed and position relative to other cars with my left thumb -- clicking the increment button on the cruise control. I was thinking that it was pretty recordable data and that it could be combined the rest of my driving data to tell what kind of a driver I am, and that I would be interested to know how my data compared against other people I know and whether I could be alerted that mr. X statistically would do y in a similar situation, or when a choice came up, what percentage of my friends who have been in jail would make x choice as opposed to what percentage of my friends who make over 100,000 dollars a year would make y choice and stuff like that.

Didn't that social network Diaspora offer to give you control over your data? I wonder if a Diaspora app could be to allow people to sell or share their driving data in some way.