"Sorry mate...read them all and having serious trouble figuring out what paying the bill has to do with this???"
I think the idea is that you could track all the objects on a bistromat table, and using PDAs instead of paper notepads for the waiters, and speech recog for the artificial diners etc, you could work out a mathematical forumla to decode bistromaths and apply it in the real world.
That's how I read it anyway.
On topic, I think you might need buttons on the controllers to play the game properly, oh, damn, another idea foiled, eh?
I'll get me coat - don't try to find it for me, it's not your problem, so you won't...;-)