Extrude System for Node and Line

Hello,

First of all -- I know there are other similar posts, but I think mine will be cleaner and more realistic. As such, I'm separating it out to give it more attention. My extrude system isn't quite like the others anyway.

As a quick summary of what I propose:

The ability to select a node or several nodes and press e (or whatever key) to extrude. This would duplicate the node(s) selected and make an attached copy of them near the originals. The copies would be placed into selected mode and ready to be moved.

For a full explanation of what I would like, why I think this feature is needed, and some pretty mockups for how this would roughly work, please see my blog post on the subject:

http://garoth.com/?p=63