We've got a test version of the wiki up featuring a new, responsive skin named Tweeki (based on Twitter's Bootstrap framework) that means we won't have to mess around with the somewhat clunky MobileFrontEnd any more. It's got its own database, a copy made last month, so do NOT work on it.
We're pretty locked down on the skin, because responsive design has kind of been the future for the last half a decade and it's time to move on. That said, we're sure there are things missing from the experience of the new skin, as it has a lot of config options. Also, bear in mind, the edit and toolbox buttons are presently missing if you are not logged in. To log in, there's a link in the footer.
I did notice that the Game of Thrones page seems to be acting weirdly. And that the main page has a couple of tags showing in the "did you know" type section. Not sure what that means, unless it indicates CSS issues or perhaps missinge extensions. We've tried to bring over every extension that seemed to actually serve a purpose on the wiki, but if something is missing, let us know.
Our goal is to go live this weekend, if possible. We do have grander plans to try and style it to be a bit more like the forum, up to and including background images if that's at all feasible.
The test site is at http://wiki-test.westeros.org/