Evidence of Sony censor?

unlike Olympus which says nothing and Sony which says nothing Panasonic during their interview directly said ( http://www.imaging-resource.com/news/2012/09/28/qa-with-panasonic-the-story-behind-the-new-gh3-and-compact-system-tech) - note that it is a transcript ( not like mythical rumor started by jiji.com )

1) "...Panasonic: Our main priority was image quality, both for stills and movies. For our former models, the GH1 and GH2, we developed a special sensor that was a little bigger than Four Thirds. However, because we wanted to make so many improvements with the GH3, we didn't have a larger sensor available. The Four Thirds-size sensor was what was available from our sensor group..."

2) "...Panasonic: We don't publish a specification for dynamic range, but yes, we increased the saturation electron number and also improved the signal-to-noise ratio..."