OK, I agree that the 10X+ Olympus 14-150 is technically a super-zoom (although I personally think of, say, 24-240 as a more traditional super-zoom), but it is still pretty heavy, .62 pounds, and pretty big, 2.5" x 3.27", and that's just a lens. Additionally, it's an F4-5.6 lens, so making it "fast" would take more size and weight.
I would like the camera you propose, but I think it is very unlikely to exist.
Here's an interesting way of looking at the problem in reverse: Suppose I want a camera approximately the same size/weight as a Panasonic FZ35 (4.65x2.99x3.5" at 14 oz.): If that camera had a m43 sensor, what kind of zoom range and aperture is possible? If they could squeeze a 3x F2.8 in there, I would love it. Or a 5x F4?
-barry