Actually, according to Kotaku, it is the Crystal Cove. Oh and as for the the positional tracking, I looked at the picture again and it looks like there's a black IR light panel in the top center perhaps?
Here is a link to the Occulus blog.
http://www.oculusvr.com/blog/announcing-the-oculus-rift-development-kit-2-dk2/If you scroll down a bit, you can see how the positional tracking is built into the headset.
As Elecman pointed out, the led's are hidden behind the plastic.
And this is what Mr. Luckey had to say about the camera on Reddit:
"Not a standard webcam at all, then. If someone told you that it was, they were mistaken.
I can't go into the technical details, but the camera was designed from the ground up for our motion tracking system, from the internal electronics to the 3D printed shell. A standard webcam cannot deliver high enough quality data, the closest comparison is professional-grade motion capture hardware."
About the acquisition of Oculus by Facebook, Mr. Luckey answers some questions about the possible consequences of the deal here:
http://www.reddit.com/user/palmerluckeyIf i need a Cr*pbook, excuse me, Facebook account to log into the Consumer Version, and i will be bombarded with ads and other useless stuff, i won't buy it. I'm a bit disappointed about this, but i guess we'll see where this goes.