Update: I got some more info – the commercial shots were for the D3100. Expect to see the Antelope (and other) canyons in the D3100 brochure or website after it gets announced on August 19th.
The rumor is that Nikon was/is shooting a commercial/sample photos for a new Nikon camera somewhere in the canyons around Page, AZ. If someone has seen or heard anything (a picture would be perfect) please contact [NR]. The initial report was that the camera was an entry level model (maybe D3100). Check also your favorite Nikon photographer’s website/blog and see if anyone has uploaded any new pictures of canyons taken near Page, Arizona in the past few days.