Michael you're doing a wonderfull job with MoI. I'm already addicted to it. Being a Rhino user, I've found *.obj N-GON export option a must specially because I use C4D to render.
Also iterface is very pleasant and the antialiasing display very confortable. Keeping a simple interface and command flow it's great to prevent TCS. If you can keep the app "lightweight" as it is now and for sure it's gonna be a hit.I'm attaching a hybrid car concept, modeled with MoI and rendered with C4D.