Safely navigate in your car without taking your eyes off the road using the Garmin Head-Up Display ($130). This portable projector beams navigation information from your bluetooth-equipped smartphone onto a reflective film on your windshield, allowing you to see turn-by-turn directions, time of arrival, distance to the next turn, your speed, the speed limit, traffic information, and more. Just wirelessly pair it with your phone, put your destination into one of the compatible apps, and go. Availability pending approval by the FCC.