This is awesome. I'm not on board with everything (as someone else pointed out, the navigation is huge and overshadows the content), but it does a good job of rethinking how users interact with Wikipedia by making it easier to use for research. Unfortunately, I can't see anything like this ever happening due to inertia and the direct democracy system that Wikipedia generally employs when making changes.
If they made a mediawiki theme that could easily be applied or made an option, they might actually have a chance. << I don't think they did that though.
Agreed. I think the people who put this page together didn't realize that you can already customize the theme of Wikipedia. For example, here is the custom CSS theme I use to surf wiki:
