Use your tablet as graphic tablet/touch screen on your computer.

I was in need of a graphic tablet for my Linux system and already got the hardware: a regular tablet and a stylus. Unfortunately there was no software to make tablet and computer play nicely together. That's why I created Weylus, a program that lets you control your computer via the browser on your tablet. Things like pressure sensitivity for the pen and multi touch are supported on Linux; additionally the screen from your desktop is mirrored to the tablet.