I would like to see a history palette similar to photoshop so one can see what you are undoing many steps backward.
Also, a similar palette would be nice for each object made so that if reverse editing is needed, one could see graphically all that was done to the item, such as, subtracting, adding and such to a 3d model.
A bezier drawing tool similar to Adobe illustrator with pullable handlebars. I know that 2009 has the point on arc tool, but I have many years working with the illustrator tool which is still much easier for organic shapes.