Just saw this post on MSDN from Jerry Nixon, a Microsoft Developer Evangelist, and it shows that partners are working on bringing some exciting things to Windows 8 and specifically to Windows RT.
As Jerry says this opens the door wide to see a lot of the graphics intense games make their way onto a Windows RT tablet running on ARM chips. Talk about cross platform between tablet and Xbox 360 console gaming!
Just look at how smooth that flows! Imagine what some of those games will be like when they incorporate various movement sensors as well on the tablets.