When is a mouse not a mouse?
Entertainment games, like Guitar Hero http://hub.guitarhero.com/ and Rock Band http://www.rockband.com/ , always lead the way by thinking "outside of the box."
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It is available to animators and video producers. It works like Adobe Photoshop: you capture pictures or video with your camera, outline the images, and use various filters to edit the images.
Tell me you didn't see that coming: a mouse that looks like a guitar. Who'da thunk it?