Garmin's Dash Cam 55 adds an essential feature to the dash cam category. These little windshield-mounted watchers are already handy for protecting you from litigious pedestrians and drivers, or capturing a drive-by shooting or strange natural event. The Dash Cam 55 can also keep you from angering everyone stopped behind you at the red light.
The Dash Cam 55 senses when the car stopped in front of you at a light or stop sign has moved and lets you know about it. Universally applied, this could mean less noise pollution (cars behind you honking), less road rage, and less stupidity. In San Francisco recently, I saw a driver ignore three green lights in a row. Not one of the maybe 15 cars waiting behind ever honked. Go figure.