I thought the most salient point Ken made was this: "At ISO 25,600, the Nikon D7000 is noisy, but devoid of annoying artifacts, making it much more usable at ISO 25,600 than any of these other cameras." That was my conclusion when I first looked at the images, then went down and read his conclusions.
It seems that the electronics on the new D7000,and the new Pentax K 5, have extremely smooth, low-noise, banding-free imaging abilities even when the exposure levels are very,very low, and when the signal's gain is cranked wayyyyy up. This is an approach Nikon pioneered in the D3x: work very,very hard to develop sophisticated, low-noise electronics and low read-out noise, and good noise reduction capabilities, in order to get the maximum image quality at the higher ISO levels. The pixel density is still not as high as "the other" camera company went with, and the pixel wells are around 25% or so larger than "the other" camera company was forced to go with...
This bodes well for the next generation of FF cameras. As well as for the D300s replacement and other APS-C sized Nikons.