Doesn't look like the GH3 is getting peaking

You have to think about this from a different perspective. If they can make a feature that can tell the “User” when the subject is out of focus then they could just as easily make a feature that would tell the “Camera” when the subject is out of focus.

They could put focus peaking in the camera. They have just chosen to spend their time making the AF more accurate instead.

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GH3, Hacked GH2, and Full Spectrum GF1 Sample movies
http://www.youtube.com/user/mpgxsvcd#play/uploads
GH3 Tips and Tricks
http://www.youtube.com/watch?v=hIMdxoGbNXU
GH2 Setup Walk through
http://www.youtube.com/watch?v=uROQbbiiO2I
http://vimeo.com/user442745
GH3, GH2, GF1 Pictures
http://www.dpreview.com/galleries/4222674355/albums