It was this line that got me:<p>> Based on that technology, MIT researchers have made a button-sized power generator fueled by butane that can run three times longer than a lithium-ion battery of the same weight; the device can then be recharged instantly, just by snapping in a tiny cartridge of fresh fuel.<p>There seems to be tons of awesome applications for such a technology. The first one that comes to mind is electronics for camping. You could have your mp3 player for your week long backpacking trip.