A month ago I mentioned that the Nikon D800 promo video was shot in Chicago, but at that time I wasn't really sure . Today I received another confirmation that this was the case. The production is now completed, which is another indication for an upcoming release - usual turnaround for commercial videos is pretty quick.
Update: This Nikon D800 commercial involved motorcycles (motorcycle mount footage). Ten different D800 cameras were used. There was a lot of high speed action and they had to shut down half the city centre.