This looks good, real good. Good news it seems.
Iso 6400 looks really clean and much better than d700. Of course usually they show and leak only good images in good shooting conditions but still amazing.
Some describe the D4 as only an incremental update to the D3S but it seems that the D800 is a reasonable leap over the D700. The 36mp thing opens up way more possibilities for pros and amatuers alike.
I am actually thinking of dropping the dual D3S idea and use one D800 with one D3S instead for increased versatilty and cost savings. Imagine the possibilities of 36mp for landscape shooters, commercial studio and fashion shooters, and for wedding photogs, how about now selling huge prints of formal family groups? No more needing upsizing software like BlowUp etc. Bird shooters can crop more and still get good size files.
Foresee huge price falling soon for D700. Had sold both my units fast.