For you sports enthusiasts out there, VholdR has built an HD camera that was intended to capture what you see while skiing, biking, etc.  The camera is mounted on to a helmet and weighs only 4 ounces.  The HD capture is about 720p and it is water resistant.  About 8 hours of footage can be captured and an additional 16GB microSD card can be added.  The camera will be available starting next month for $300 on the VholdR website.

[via CrunchGear]