It appears that the first NPS (Nikon Professional Services members) Priority Purchase orders for the D4 will arrive at dealers tomorrow along with some additional cameras. Included with the camera for those orders is a free Sony 16GB XQD card and card reader. That's the good news.
The bad news is that it appears that not all NPS Priority Purchase orders will actually ship tomorrow, only the first batch of them. Dealers appear to be getting a small number of non-NPS D4s as well. So far, most dealers I've talked to have not gotten the full number of bodies they ordered initially. But there are a few D4's out there if you look hard enough. As I suggest during any Nikon shortage: because Nikon has to supply all US dealers equally at each level, it's usually the smaller market dealers where you'll find an extra body. Philadelphia, no. Harrisburg, maybe.
Short story: D4 bodies are going to be in very short supply for a while. Unfortunately, I'm pretty sure we'll go through the same thing with the D800.