This is all cool stuff and I'd like to have a go at subd modeling at some stage but I believe the focus should be developing the existing MoI toolset further and get it to a more mature stage before all these other goodies are added, I would rather see surface to surface continuity added to Network, Sweep and Loft, and we all know about the fillet library. oh! and maybe a dash of deforming tools :)
Just some of my thoughts on these advanced tools that keep on popping up lately, I think you are going the right direction Michael, keep up the good work.

Cheers