So simple and fun!
While the website is kind of spare, their tumblr has lots of good stuff, including info about the controller board (Arduino MEGA based) and other nice build details, as well as a few software libraries. It looks like a alot of effort and TLC went into this project.
It appears they’re going to be running a Kickstarter soon as well.
BONUS: check out this neat project that reacts to likes on your Facebook activity. (very Matt Richardson-esque).