Do you realize how many people actually hate live-view? Are you even aware of the benefits that a viewfinder offers? People don't by SLR's just to be able to change lenses.
I think it's funny - I wonder what the people that look at ground glass for a living think of live view - the people that do large format and waist level medium format. Isn't that a live view, I wonder what the fps is??? I think you could make it extremely useful. You could have a variety of "virtual" focusing screens (grid, scale, ...), do a DOF Preview in live view without squinting by boosting the signal levels or really do away with looking through the lens wide open and truly look at the image with the set aperture and have the live view adjust its brightness. A DOF View all the time. There are a lot of possibilities not thought of. But, as of right now the only advantage I can see to current live view systems is zooming in to fine focus, other than that it's just a mock-up of a p&S. It's a real shame it could be utilitzed much more than being a parlor trick.
-Brian