Someone should make that as an app or web site. I think it'd be interesting for more people to experience it, and something less reliant on having dice and checking tables would be more accessible.
I agree that it sounds like a great web app (I had the same thought) but I think you need to be careful not to be too hand-holdy. Half the game is the journaling of the situation, and if you too hand-holdy I think you lose a lot of the impetus to do the journaling. Or at least to do it well.
Still, I'm definitely considering it for this one, or something like it.
Still, I'm definitely considering it for this one, or something like it.