days before @wsys showed up with his awesome DIY LED matrix up @metalab i started writing RetinaTattoo
(http://github.com/Metalab/RetinaTattoo). It's a software for streaming to LED strips over network. We're using it to play Super Mario Bros. on a LED Matrix.
The setup: A playstation 3 controller, A notebook running a NES emulator and a Gstreamer pipeline. A Raspberry Pi running RetinaTattoo. A LED matrix (built from WS2801 LED strips) controlled via SPI.