Details about Cubelets at CES 2013, collected together by 3ders.org featuring pieces by MAKE and InsideScienceTV:
Modular Robotics, the makers of Cubelets, were at the CES 2013 showing off their modular robotic construction kit for kids. The basic Cubelets kit (KT06) contains 6 Cubelets that can be snapped together to make a variety of robots with no programming and no wires. This is a perfect toy for teaching kids to learn robots and science. You can build robots that drive around on a tabletop, respond to light and other objects, and have surprisingly lifelike behavior. But instead of programming that behavior, you snap the cubelets together and watch the behavior emerge like with a flock of birds or a swarm of bees. The basic kit KT06 costs $160 and an individul module costs around 20~30 dollars.
In the video above, Emily Plage made a demo of the cubes and the robots. Their newest cube is a Bluetooth module developed two months ago that you can use it to pair your Cubelets robot with your phone — read sensor values from far away or remote control your mobile robot. Or you can connect your Cubelets robot to your PC and reprogram any connected Cubelets using the Cubelets CODE web application and a simple API. The team also brought to CES a prototype of an adapter made on a 3D printer. It can be snapped on the robot and allows you to connect blocks, such as Lego bricks to your robot to make a robot in different shapes.