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.