we are running this now for a little while, and just came around this website

this is how it looks:

thats how it looks installed (and during installation):
http://www.youtube.com/watch?v=RYSZZnIaVjk
The project is hosted at google code: http://code.google.com/p/multidisplay/
With the latest change it even can control your boost with full PID support

hope you like it,
Stephan Martin