Well pardon me for saying, and I mean this as a compliment, but isn't Moi supposed to be? Moi has many of the same features and works the same way. Both NURBs(3dm). If you've used one you can pretty much master the other. The main difference IMO is that Moi is much more streamline, easier to use and better than Rhino. I was modeling something in Rhino earlier and I realized that what took me 3 steps in Rhino I could have done in 1 step with Moi, but I was also incorporating meshes so I was forced to use it. If Moi gets any better and more well known, Rhino is going to be in trouble!

I think a more valid question is, if there's Moi(v4+), what's the point of having Rhino?

I realize the plug-in thing is huge and not likely but there's always that mesh idea. ;)