10 physical gestures that have been patented

io9 writes about 10 physical gestures that have been patented. I can kinda see the point of patenting something like the graffiti alphabet, but the slide to unlock gesture seems ridiculous. Apple's patent on Pinch to Zoom
almost vaguely kinda seemed reasonable until I remembered Steve Jobs saying on stage, "you already know how to use it" (though I think that's from his introducing the iPad referring to what you learned from the iPhone). I think I like Nintendo's approach better.