That's actually a pretty good description of the idea. The use of the term "acoustic" in this sense is more of an appearance and vibe. Its going to nearly useless unplugged. The idea behind it is pretty much the same as the SST, 0 feedback, and lower string tension than a normal acoustic. I've given some thought to chambering the body to add a bit of warmth, but all the research I've done leaves me with the impression that the chambers need to be done in very precise locations, depths, shapes, etc, and I really have no idea how to determine all of that. I'm basically trying to come up with some unique ideas that would be fun to have in a guitar. This is either going to turn out well, and replace my Alvarez as a gigging instrument (I really hate having her out of the house, she's irreplaceable) or a big funny-looking number 2 pencil to sketch ideas for songs out.
Having said that, I'm curious if the soundhole mic types of pickups (like the LR Baggs system) would pick up string vibration, or just soundboard vibration. It will definately have an undersaddle piezo, I'm just undecided on which one.
Great suggestions so far, keep em coming!