How to use:
* Install the app
* Download the uinput binary file and run it (download here:
http://rfc2822.github.com/GfxTablet/#part-1-uinput-driver). Leave it open as long as you want your PC to receive input events from your Android device.
* Enable WiFi on the device, connect it to your LAN.
* Open the app, go to Settings and enter the IP address of your Desktop machine.
* Open i.e. GIMP, go to Preferences / Input devices. Choose "NetworkTablet" and set its mode to "Screen".
* Happy painting