Seeing these demo
http://www.youtube.com/watch?v=HAZg9bEPm1E&feature=related
http://www.youtube.com/watch?v=-LTKFWt-Mrg&NR=1
seems there are no problems for draw some curves with the Moi Program
because you have no need to much pressure sensibilities

Curiously number of pressure sensibility is not writed?
http://fr.asus.com/Eee/Eee_Pad/Eee_Slate_EP121/#specifications

founded! 256 levels pressure if I believe this demo
http://www.youtube.com/watch?v=xqMHDW3KyF8&feature=related