Baltimore Checkbook — Your smartphone knows if you're a good driver

http://baltimorecheckbook.tumblr.com/post/149097192552/your-smartphone-knows-if-youre-a-good-driver#_=_

Want to prove you’re a better driver than your friends? There’s a growing list of apps to do just that.



from http://www.wbaltv.com/money/your-smartphone-knows-if-youre-a-good-driver/41250360