I've ordered one of these and it should be here early next week!
"the monome 40h is a reconfigurable grid of sixty-four backlit buttons.
"buttons can be configured as toggles, radio groupings, sliders, or organized into more sophisticated systems to monitor and trigger sample playback positions, stream 1-bit video, interact with dynamic physical models, and play games. button press and visual indication are decoupled by design: the correlation is established by each application."
More info: monome.org
I've been playing with some of the prebuilt applications for this thing and they are very cool. I also think it'll be a great way for me to learn some of the new applications, and many of them are open source. Currently learning about: Chuck / Audicle, Pd, Max/MSP, Processing, Wiring.