First I have to mention that covering the camera name/logo/model with black tape is nothing new and many photographers have been doing it for a while. Having said that, here are some reports on taped-up Nikon gear from the past week - maybe someone will spot a difference from the existing models (I couldn't):
The first one is from a dpreview gallery - it looks like a Nikon D700:
The second example is from the new Aperture 3 video made by Bill Frakes (1:04 mark into the video) - what I find interesting here is that only the model number is covered and not the Nikon label:
The third occurrence was submitted to me by a reader -the picture was taken yesterday on an Anti Olympics protest in Vancouver (we had a previous report that Nikon may be testing new bodies at the 2010 Winter Olympics):
"As I got closer I noticed it was clearly a Nikon with an added grip, it had the Nikon taped over and no model number on the side. By the looks of it it was clearly a full frame. I went to go take another picture, the guy noticed and hurried off into the sea of people."
The above camera looks identical to the current D700: