BioLite Camp Stove - "By converting heat from the fire into usable electricity, our stoves will recharge your phones, lights and other gadgets while you cook dinner. Unlike solar, BioLite CampStove is a true on-demand source.
Lytro, the light field camera. Unlike a conventional camera that captures a single plane of light, the Lytro camera captures the entire light field, which is all the light traveling in every direction in every point in space.
This is such an amazing idea. I've already thought of two things it might be useful for: a) No headphone cords when running. b) No headphone cords if you fall asleep (just in case they get wrapped around your neck)