The contributors at Principia Labs have demonstrated a method of controlling four (or more) servos from a PC running python and an Arduino board. Their reason for doing so was to create a base software stack that could be built upon for any other python script. As shown in the video below they have found several uses, including joystick control of the servos:
Thinking of embedding an Arduino-compatible board in your next project? Consider using the Freetronics LeoStick:
Apart from being one of the smallest Arduino-compatibles on the market with USB, it also has an onboard RGB LED and piezo which can be used a knock sensor and various tune and sound effects. Plus you can add extra circuitry with the matching protostick! For more information and to order, click here.