Google’s free GPS for phones threatens Garmin and TomTom - NYTimes.com

MOUNTAIN VIEW, Calif. — GPS navigation devices were the latest must-have tech toys just two years ago, and shares of device makers like Garmin and TomTom were soaring.

That didn’t last long. In a turnabout that has been remarkably swift even for the fast-moving technology business, those companies have suffered as competition has pulled down prices — and as more people have turned to their cellphones for directions...