Is there any way I can use notebook's touchpad as a pressure-aware pointer in a paint program?

Is there any way I can use notebook's touchpad as a pressure-aware pointer in a paint program?

I have a notebook (ASUS N56VZ) with multitouch touchpad.
Apparently my touchpad supports pressure levels (in Xorg.0.log I have line synaptics: ETPS/2 Elantech Touchpad: pressure range 0 - 255)
It would great, If I could use the pressure information in paint programs and use it as a poor-man's tablet.
Is it possible at all? If so, what paint programs are supported?