The shots I posted above are with the 70-200 wide open at f2.8 with the Vignetting control in camera at "normal" It does help quite a bit, but not perfect as I tried these same shots with the setting on "off" and it is much worse. Perhaps with a higher setting with this lens it will be better. You can add to the in-camera setting in Capture NX 2 as well.
Stopping down any lens will help with this issue, which is why the MX shots look a lot cleaner.
If you care to check out the 70-200 on an FX camera, you can see the effects as you zoom in the viewfinder on the ground glass.
This issue is probably driving a re-design on this lens at Nikon.
You can certainly clean most of it up in PP, but that adds time to the workflow, which is disappointing in a $1,600 optic.
I will be playing with the in camera settings a bit more with this combination when I get a chance.