Lemme see... I have to take a part out of a new $3,000 camera and BEND it so it doesn't rattle and intrude into one of the camera's major new functions -- shooting video? That's a gutsy move and equally preposterous that we should even have to consider this. Nikon: are you listening? What are we supposed to do? Open our pop-up flash to shoot video?
I have not shot any video yet with either of my new D800s, but you can bet your lungs that when I do, if the recorded sound includes a rattling noise from within the cameras, they are going to be on someone's desk at Nikon -- and I may be standing there with them!
I'm gonna go shake mine right now! Of course, I'm 68 and my hearing is bad, so I may have to wait to shoot video first!