A nice thorough article,
David Diamond, the author, has some good points about Moi,
Like "simple, clear and to the point", and giving creds to Michael for making such a stable and well-interfaced v1.

But I don,t agree with this "No one expects you to sail in a boat you've designed in MoI".
Why not?
It's certainly possible to design a perfectly precice and good sailboat hull in Moi.
Im at least sure i will use Moi in my next kayak project. Can't think of any reason not to.

Personally I don't miss layers or wireframe or object naming.

-Fredrik