I currently shoot with the D2X (3.5 yrs) and I really need more pixel density so I held off on the D3 while lusting for its high ISO performance and 1 stop more dynamic range. The D300 would not have been an upgrade for me.
Knowing I will get the next 24 megapixel monster I also don't feel like lugging two big bricks around (D3 and D?). Now I can get what I wanted from the D3 in a compact, much lighter body. I have a feeling the D? will not have near the HI- ISO noise performance. I have also been wanting to carry a camera that isn't as conspicuous as the D3 or D2X at times. And last I like having the built in flash commander.
I type this as I put B&H's number in my speed dial and wait for 9:00 a.m. - with my NPS info on the desktop beside me
Can you tell I'm a little excited?
EDIT - B&H was not very responsive (D700 not in the system as yet) so Berger Brothers now has my order. Larry is so good to deal with.