Today we've released our CUBE4: RGB LED cube kit - http://www.freetronics.com/products/cube4-4x4x4-rgb-led-cube
This stunning 3D-matrix of 64 RGB LEDs incorporates an onboard Arduino-compatible controller so you can produce mesmerising light shows controlled by software. Use it as a mood light, or create your own “ambient device” that gently notifies you of new email or instant messages. The Cube4 is supplied as a partly-assembled kit: the controller board is fully assembled with all surface mount parts already fitted. You just need to solder in the LEDs and assemble the 3D matrix.
The Cube4 comes with a sketch pre-installed that runs through a test pattern and listens to the serial port for other commands. Once you have assembled your Cube4 you can connect to it using a serial monitor (such as the one built in to the Arduino IDE) and send simple commands to create your own patterns. You can also upload your own sketches using the Arduino IDE and the Cube4 library, which makes it easy for you to define your own animations and displays - for example: http://youtu.be/c8hrxd72H2E
It's shipping now and fully documented with instructions, examples and more - please visit http://www.freetronics.com/products/cube4-4x4x4-rgb-led-cube for more information.