I have some sample images and the JPG noise reduction is much better. These are from a pre-production camera though so there are other issues. We will have to wait for a production camera to really know.
my greatest wish is improve focus sharpness(or softness) in photo, you know how when you see an image and press the shutter, it comes out like what you just saw and released the shutter, and important in focus and sharp. On lcd is focus on and sharp, after a review, there seems to be a touch of softness and blur. I hope I explain good enough. My sony POS does far better in this area.
I hope I don't get into any legal issue with the following. since the gh3 has been announced. I had a chance to talk to one of the Pany Japanese engineers who said and admitted that the "GH2 wasn't a fully finished product". So I hope focus is right on on the GH3.