Don't feel bad if you and your friends are having problems with the bistro math at dinner. The MIT guys can't do it either. They can develop special tablet to do it for you though. Yes, I know you already have an app for that, but E La Carte is banking on their tablet wooing restaurants by doing much more and raising revenue. The E la Carte tablet allows customers to order, play games, get wine suggestions, split the check, figure the tip, and even pay the bill at that table. LotsOLoot.com reported that in a pilot program in six restaurants, customers at E la Carte tables spent 10% to 12% more than those diners at other tables and tips went up too. The company has raised over $1 million in funding from investors, and will be launching tablets in 20 restaurants on the West coast. The big news is that the company has a partnership with a large restaurant chain that hasn’t yet been announced, but apparently some Applebee’s execs participated in the first funding round, so that might give us a pretty good hint.