This is one of the dumbest things I've ever seen, but I bet it does help you see the monitor better.
Now the question is, who would want to be seen in public wearing this, everyone would think that you're looking at porn or something. It probably gets quite hot in there as well, and from the looks of it, you might have a little difficulty taking a sip of some coffee or water while you're wearing the dual hood.
Personally, I'd stick with one of the privacy filters that just slip over the screen. They seem to be much more manageable, much less geeky, and well, you would be able to see if someone were to throw something at you.
The one cool (I guess) feature is the speak hole in the back of the head hood. I guess that works if you have ears on the back of your skull.
Via boingboing