Augmented reality app for (f.e.) iPhone or Android: The application uses some kind of image recognition to determine the visible cards and then presents the most probable outcomes to the user.
Additional estimates can be made by counting the number of cards that is played during the game.
OK, some ideas might be silly, some unusable and some just a wild goose chase. In the unlikely event there's a really, really great idea which you decide to steal and make insane amounts of money off it I want a percentage. In return I'll promise not to tell anyone you've stolen the idea from me :-)