Like your tattletale little sister in the passenger seat, State Farm is there.
The auto/home/life insurance giant has recently started advertising the new Driver Feedback app for iPhone. The free app uses the iPhone's sensors to measure your acceleration, cornering, and braking habits, then calculates a score based on how you've done. If you're famed in the family for your jackrabbit starts, high-speed two-wheel turns, and jamming on the brakes, chances are good
