Car accidents can be intense, and cutting down on how much you have to worry about when you're in one is what the Clarion DriveEye sets out to do. Installed inside the upper portion of your windshield, DriveEye lies dormant until a G-force sensor detects hard breaking, at which point it starts recording for 20 seconds. All of the footage is stored on 128 MB of internal memory housed within DriveEye's tough magnesium frame. Unfortunately, the unit suffers from a fixed point of view (though it's adjustable), but not all collisions give you time to brake. A press of a button can activate the DriveEye manually, but it's doubtful a driver will have that kind of clarity right before a wreck.

Video evidence of accidents as they happen is no doubt advantageous, whether it's used to aid in a claim or simply get the record straight. But the DriveEye's limited field of vision, highly situational conditions for activating, and the fact that it costs over $400 make this gadget a great idea, just with not-so-great execution. — Kevin Hall

Yodobashi, via Übergizmo