GfxTablet (Graphic Tablet) is a project that consists of two parts — one is Linux input driver, and the other is an Android app. It turns your Android device into a graphics tablet and you can control your Linux machine with your tablet. There is no screen output on the android device and stylus/finger motion is transmitted to the Linux box.
The only downside is there’s no option for “lefty” mode for people like me. 😦
It will be interesting to see how well I can use this.