It’s cold in NYC. Like, really cold. This Hand Radiator iPhone App turns your iPhone into a hand warmer. This might be the smartest dumb thing I’ve ever seen. Or is it genius. I can’t decide.

The app puts your iPhone on overdrive, using 100% of its processing power. That, as you probably have noticed with some applications, makes the components to overheat, which in turn can warm up your hands

How bad is that for the battery life? Via Gizmodo