I saw on of those magnifying headsets that can have a light or something and thought this could be improved. Here's my list of improvements / ideas:
* HUD, Heads up display, something that you can see information on the project you are creating. Schematics etc.
* Lights / Magnifying glasses
* Basic voice commands for light and moving magnifying glasses
* Potentially some kind of head tracking / gesture control. Move soldering iron closer / further away etc, Turn something off / on
The idea is to free up your hands for other tasks.