I don't know if anyone's mentioned these before, but my limited experience with this program makes me want:
a numerical representation for things like curvature of points, shear, etc. It's hard to match these things on a symmetrical object/shape when I don't know exactly how "much" i'm curving a point or set of points.
Also, a history like photoshop has of all your actions in the program (not "actions" in the ASP sense, but meaning anything you do in the program at all) so you could easily jump back to earlier states of your project
Unlimited undos. . .I've noticed you can only undo so many times, and furthermore, if you go from doing something on a bone layer to a vector layer the undos will only go back as far as when you were working on the vector layer.
values for shear, curve, etc; history palette, undos
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