Pfo Cubed:Here's another one,
XNAWindowSystem. I'm currently using it, it works. Needs some work too, but hey, I don't want to do it!
I just wanted to point out that XNAWindowSystem also won''t run on the XBox. It uses keyboard/mouse only for input and makes use of methods that aren't available on XBox (e.g. Enum.GetNames()).
Otherwise it's a very nice system. If you're only interested in Windows development, it's definitely worth a look.