I've been playing around with the development kit as I have a little 3d modelling experience. The SDK is extremely powerful, the only problem with it right now is a lack of tessellation. My 460 GTX was able to run the demo at over 70 fps constant. it's an entry level graphics card thats 2 generations old. The engine has potential but it's not exploiting computers as much as I'd like it too. Hopefully with tessellation and someone working hard to make extremely extensive graphics. it should require a good computer.
That being said, consoles can only dream of using it.