EDITED on 9/15/2010. AGAIN on 9/16/2010. See below.
I have only one thing of real value I need to say about the D7000: it has an AI meter.
Why is this relevant? This feature was not included on a D80/D90 level camera before. This was reserved for the D200/D300 level and above. It has been a discrete but key differentiator: only very serious amateurs care to use AI lenses (such as ZF.1) and will pay top dollar to get cameras with it, so Nikon historically reserved it for premium cameras.
I hypothesize that this camera is the D400, basically. The D7000 is the smaller, lighter-weight, less expensive D400.
All of the other features make sense now in this context : the 100% viewfinder, the metal body, the shutter mode dial, etc...
== EDIT1 ==
I need to add: it has Mirror-up.
This totally is the successor to the D300.
== EDIT2 ==
I note on the Dpreview preview that the menus have both AF fine-tuning, and non-CPU lens data. The latter is rather essential to the use of the AI meter but you never know, it could have been left out.