SAM (Servo Actuation Manipulator) is a GTK+ based X windows application for controlling anywhere from 1 to 254(so far) servo motors via a serial port connection, specifically this program was made for the Scott Edwards Electronics Mini SSC II. (As far as I know ONLY works with SEE MiniSSC II).
This is a fun app that I'm developing to control servo motors. Not much more to say. It is able to record, and replay servo motions.