I own one NEX-7 body since several months so this is my impression:
Stills:
9/10! Sony used here amazing high resolution sensor with top IQ, very fast burst mode. This is the pocket-size camera for those who demand the highest quality. Its RAWs are the best (especially for low light conditions), but also JPEGs out-of-camera are excellent. Comparing its stills to m4/3 cameras would maybe not be fair, but Oly OM-D E-M5 would be in my subjective opinion very close: 8/10, GH1 some 7/10 and GH2 6/10.
Video:
I won't rate it at all, nothing comparable to hacked GH1 or GH2. NEX-7 is definitely not the one for video enthusiasts. But nevertheless it has really nice looking image, less sharp but pleasant for my eyes, very nice color rendering. The sensor overheats after some 20 minutes in 1080/25 mode so I will try in winter if it can last any longer.
Overall, I really like this camera and enjoy using it, I love its low-noise shutter :-) I don't own spare battery pack, it lasts quite long. By the way: I've used NEX-7 so far only with my old MF lenses, so no idea about its AF.
UPDATE December, 1st:
I have opened new topic with video comparison of the NEX-7 versus GH2:
http://www.personal-view.com/talks/discussion/5342/nex-7-vs-gh2-video-comparison
Long story short; as an underwater photographer I buy 2 bodies to prevent a housing flood from ruining a dive trip. When the NEX7 was released there were supply chain problems. I was only able to source one NEX-7 body from America and the backup was from the Dubai Duty Free. The US version flooded 2 weeks ago and I am left with a PAL Nex-7 Body. Is there a way to change this body to NTSC?
Looks like everyone on that thread focused on the A7.
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