Here is a feature (set of) that I'd like to propose, and I am sure that somebody already mention this.
While I love the axure and it is a GREAT prototyping tool I am still missing some of my favorite Visio features. I wouldn't even call them Visio, since these are some basic vector editing features that would extremely help me.
These are:
Freeform tool - allow drawing of free form lines and connect them into shapes
Rotate object - allow rotation for any object
Shape operations such as: Union, Combine, Fragment, Intersect, Subtract - these will provide ability to create more hi-quality objects, shapes, masters, etc. and will allow people to create libraries more easily.
Better Text Formatting options.
I honestly have a bigger list, but I'll keep it for now to myself, probably will mention them later.
Thanks,
Andre
Kind regards,
Andre