Here’s a really awesome video from Volkswagen where a subway staircase is rigged to play like a piano when people walk on it. Increases stair use by 60%! Now if only you could make money off of that kind of scheme (only have the piano sounds work if you charge people like 2 cents or something… millions.. millions could be made! 
)
Also, as the title of this blog post promised, here’s a pretty sweet wifi-connected piano playing iPhone app from Yamaha (and the video clip in the article has a really bizzare singing humanoid clip at the end of it – looks like its pretty much only useful if you want to make your RealDoll sing while you’re banging it, at least as far as I can tell).
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