On one corner we have Visual3D.NET. A public CTP had been announced, but last time I visited the forums, someone asked, but no news were added.
On the other corner we have XNA MAGIC. Two things: i) the "Naming Competition" is over, so the new name for this framework (and the winner of the Pro license) may be announced soon, and ii) information about the beta 1 can be found on the "Beta One Development Roadmap" page.
Both look very promising but none has revealed the price for commercial licenses, thought ... :(