Okay, here is what I learned.
I called David. (He does not have an assistant :-) )
David turned me over to Bruno, who had never heard of Moment of Inspiration. I told him that Michael Gibson created Rhino, and later Moi.
Bruno wanted to know what kind of .3dm file I had. He had me do a .3dm import.
Bruno said that Step214 files may be the type to use, as they keep Nurbs information.

Select import, from the directory select file to import, (for examble Moifile.3dm,) THEN, (insert DUH here:-), there is an import options screen. Check import NURBS.
Receive warning message that file "does not include 3d geometry. Inside Rhino please select View/Shaded prior to saving it."

So then Rhino can be used to Shade the Moi 3dm, and then import it to KeyShot5Pro. (I did that yesterday, not sure what difference the NURBS checkbox makes.)

My conclusion is that Moi .3dm files cannot be DIRECTLY imported. EDIT: This statement is FALSE.

>>>EDIT: With a proper install, KeyShot5.1Pro WILL directly import Moi .3dm NURBS data.<<<

I'll try some other formats later. Step and Obj probably.

- Brian