The other day i was comparing programs for sketching and i saw the new version of autodesk sketchbook pro, but then i was linked to sketchbook designer, thats a very cool program that combines paint and vector workflows. One of the things that attracted me was the ability to draw a simple hand drawing curve or circle and then the program made it as smooth as you want. Other thing was something i think can be added to MoI... You have a curve and you can modify it by control points but control points that are over the curve like when you draw a trough points curve, and then wen you clic in a portion of the curve that has no control points, it adds a new one. Thats really great!!

Here is a video:
http://www.youtube.com/watch?v=jXENHOzf3AE

Then I saw it integrated to 3D!!!
http://www.youtube.com/watch?v=-K1TTtwUu6E&feature=fvw