Garret LeSage's design idea's for Nautilus cover's much of the same ground as some of the other analysis that we've looked at before, but it does present a very good, straight up design spec, rather then just smoke blowing. While this isn't technically an upstream design, it is a very good set up that could very well be pushed upstream.
So give his post a read, if you're interested in it. He has some very great graphic mockups as well, so head on over, right here.
