This is a system test. The tree is a stand-in. We envision a much fuller tree. This one was a temporary donation. Also, all of the electronics will be packaged and the mechanical system will be turned into a decorative grate by a blacksmith.
Below is a cameraphone movie of a moving branch (1.6 MB...patience...). We can alter the speed of the movement. Imagine all branches being controllable like this. A tree with long, flexible branches, like a fuller Japanese maple or a willow, will have more evocative motion.
Breeze, our ambient robot, will appear at the Fribourg Festival in June and early July and travel to the ISEA/Zero 1 arts festival in San Diego, USA in early August.