With the little black buttons next to the seat you can switch to the flight control mode and you can actually FLY the airplane (you have to swipe your credit card first through the little white slot though...)!
You can control the airplane with the small buttons and see where you're going through the little inseat video screen when you switch into 'Nintendo-mode'.
It's currently being tested on some Delta 777 to bring back "the joy of flying". If successful it will be installed on all their 777.
Pretty nice idea I think!