Forgot to shave your stubble? Not to worry, just fire up the kooky iShaver Pro (free), and your iPhone will turn into a virtual electronic shaver that will vibrate and buzz just like the real thing. Virtual hair will even fall from the screen. The only thing it won't actually do is, of course, give you a smooth shave. It’s brilliantly useless. In a strange marketing twist, the demo version seems to be $1 and the Pro version is free. Cunning.