Well, after some stumblling around, and getting a handle on the workflow ( Lay out some profiles first, then build from there ), MOI is a killer little app. It's simple, fun, and very powerful. And each beta release seems to add more power without introducing crippling new bugs.

One thing I love is the lil 'rotate/pan/zoom' popup. With a trackball mouse, those buttons work great. And tablet input is a dream!

One useful feature would be a way to have a 'library' tab in addition to the "Draw Curve" "Draw Solid". The library tab would be a way to quickly load and import shapes from our own, or external libraries. Say, standard jewelry fittings, etc.