Thanks for the writeup, I'm looking forward to some of these questions/answers!
In defence of the contrasty/sharpened video content produced so far, in my opinion it looks as good or better than what Panasonic showed before the GH4 release. Within a day or two of getting my GH4 I was able to get far more filmic looks out of it (no doubt thanks to the final firmware, not any skill on my part!), and we might be able to hope for similar results on the NX1, no?
That said, any numbers and/or evidence regarding dynamic range and low light capability (as mentioned above) would be great.