Monome
URL = http://createdigitalmusic.com/tag/monome/
Description
"The Monome, a minimalist, elegant open source hardware controller conceived as an array of light-up buttons, has already made a big splash in the music world. But because it’s fundamentally a controller / LED display, it could be used for anything. And the Monome is now starting to realize that potential in increasingly-cool visual device." (http://createdigitalmotion.com/2008/08/05/monome-as-open-source-visual-hardware-video-roundup/)