>2) I think a D400 would have the same meter as the D7100. I >believe that every other DX flagship has had the same meter as >the lower model: D200/D70, D300/D90.
I'm not sure how relevant it really is, but that's not quite true
The D200 is probably better compared with the D80 than the D70. The D200 and D300 had 1005-segment 3D Colour Matrix II metering; the D80 and D90 had 420-segment 3D Colour Matrix II metering. The D70 had the 1005-segment meter, but it was the earlier 3D Colour Matrix rather than 3D Colour Matrix II.