Is there any way I can use notebook's touchpad as a pressure-aware poor-man tablet in a painting program?

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 hardware is supported? How can I test it?

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I'm not 100% sure I address the correct mailing list, but I can't find a 
better one. Please advice me, if I'm wrong.
This question is a cross post from 
http://unix.stackexchange.com/questions/77180/is-there-any-way-i-can-use-notebooks-touchpad-as-a-pressure-aware-pointer-in-a 
that I asked 3 months ago and still got no answers.


Adam Ryczkowski
+48505919892
Skype:sisteczko