I’ve released the source and executables for my Master/Slaves Wixel Software. This uses one Wixel as a master plugged into your Raspberry Pi USB to control up to 64 slave Wixels via 2.4Ghz wireless. Each slave can control 6 R/C type servos and monitor 3 analog inputs. I’ve also included a Python class for the Raspberry Pi, some HTML5 javascript and graphics for the user interface and instructions for running your Pi as a web server.
More info on it is here: http://servowidget.com