There's some pretty heavy discussion of Bjorn's and a handful of other reviews on sites such as DPR, FredMiranda, RobGalbraith, etc, but the jury really is still out. I'm sure the D2X will be a great studio camera though and should be up to the task for just about all other uses (sports, photojournalism, etc). IMO, there have been far too many positive samples and user reports to believe that the D2X is anything other than an extremely capable camera. To my eye it looks like Nikon is definitely getting the full 12mp of resolution out of the D2X's sensor, and the D2X is sure to both stem the tide of the Nikon pro defection and also should put the pressure back on Canon once again -- finally! As I've said in many a post elsewhere, kudos to Nikon, and watch out, Canon! 😀
Where I differ from many of the more rapturous responses in several Nikon forums though is the notion that the D2X is suddenly a "miracle" camera for Nikon, that it outperforms everything else with a lens mount and a digital sensor. Conventional wisdom has it that decreasing pixel pitch will increase high-ISO noise and decrease dynamic range. There have already been some less-than-ideal noise tests of the D2X and even the famously retracted one, although precious little has been said about dynamic range. I'm willing to bet though that after all the reviews are in (with Phil ASkey probably getting his done around, oh, Halloween 😀 ), the D2X will have tangibly worse high-ISO noise and dynamic range compared to both the Canon 1DsII and the Fuji S3. I just don't think it's possible for Nikon to cheat physics as we currently understand it.
And another thing I posted on several other forums: the big news about the D2X is that people are arguing about test results between an 8k camera and a 5k camera at all! Even if the D2X turns out to have worse high-ISO noise and dynamic range than its competition (as I'm fairly certain it will), as a value proposition in the pro segment it's a very strong challenge to Canon. I hope the D2X will start a price war in the pro DSLR segment similar to the price war in the consumer DSLR segment started by Canon's Digital Rebel (300D), but ultimately that market segment isn't nearly as price-sensitive. Well, one can always wish for lower prices, anyway. 😀