Rowan Collins wrote:
No. As Brion rightly points out, there are, and always will be, URLs for things other than wiki pages. If, for instance, http://en.wikipedia.org/skins was the URL of a wiki page called "skins", where would the files (CSS, images, etc) for displaying the skin be stored? And even more so, if http://en.wikipedia.org/w referred to the article [[w]], all the URLs of the form http://en.wikipedia.org/w/index.php?title=... would instantly break (in fact, they would point to pages called things like [[w/index.php?title=...]]).
In the long-term, why should there be such things? If something is not a wiki page, it shouldn't be using part of the public URL-space on en.wikipedia.org. Such things could be hosted at e.g. skins.wikipedia.org, or skins.wikipedia.org/en/ if they must be localized. There already is such a place for images (Wikimedia Commons).
-Mark