From my understand the game needs to be at least DX9 and up. So pretty much all the games that have been released in the last couple of years. That's not to say that they all will run or without some issues. But everything I have rested does run in 3D. Once you have gone 3D, you'll never go back.
It really is that cool.
OpenGL doesn't work as of yet. It is supposed to be sorted in a driver update in the future.