[ubuntu] Touchpad to emulate touch-screen

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http://ubuntuforums.org – Hi there, I've got this funny idea which i'd like to try out if it exists: is it possible to have the touch-pad of my laptop (Dell Vostro 1510) to emulate a touch-screen? The touchpad would be a miniature representation of the screen. For instance: pressing the touchpad on the top-left would move the pointer and press in the top-left of the screen accordingly. Is this possible? Say yes :) (Hardware)