You can think of RPGs as essentially ad-hoc story-telling with some mechanics and elements of chance to give it structure. I know when I used to play GURPS, we

You can think of RPGs as essentially ad-hoc story-telling with some mechanics and elements of chance to give it structure. I know when I used to play GURPS, we only followed a vague semblance of the official rules; in practice, we just did whatever we wanted. It would be very difficult if not impossible to contain this sort of anarchy in a fully digitized game! This is very different from most "normal" board games. The real attraction is not playing a game or trying to win but rather coming up with and participating in an evolving narrative. Given the right friends with sufficiently twisted (in a good way, of course) senses of humor, the end result is often completely unexpected. That said, I'm sure that playing an RPG on something like PixelSense (seriously, they couldn't come up with a better name?) would be pretty cool.