i love taking notes with my mbp, but whenever the profs. draw graphs & charts or write complex formulas, i really don't know what to do. so i was thinking, i wish my screen was touch sensitive so that i can draw directly onto it. then i realized there are such things as tablet PCs. i also realized that the mouse pad is touch sensitive. anyways, those thinking finally led me to this idea, where i wish the mouse pad has a mode where it can be turned into something like a Wacom tablet (i.e., each point on its surface is mapped to a point or area on the screen) so that whenever i need to enter complex drawings or when i need to quickly entering fomulas, i can just use a pen or whatever thingy that's equivalent to the Wacom pen, to do it. is this idea too wild? is it ever gonna happen? why or why not? discuss!