Panansonic GH2 dissembled and analyzed.
Chipworks dissembled and analyzed the GH2 electronic. You can only read the first part of their article. After that you have to pay to read the rest!
There is a new GH2 review at CNET: “It’s speedy, feature-packed, and an excellent ILC for shooting video, but to consistently get really good photos out of the Panasonic Lumix DMC-GH2 requires shooting raw.“