There have been some nice experiments to make a wiki behave more like a filesystem:

• Integration of webdav and JSPWiki
• FUSE filesystem for mediawiki

FUSE is a promising technology available on most *nix platforms (works on MacOS X, Linux, FreeBSD, OpenSolaris)

It would be useful to be able to just add a bunch of html files on a wiki and have it host them. For instance and zip file could be attached and a special URL could be used to access the contents of the zip file with names such that local hyperlinks of the contents would work.

There quite a few obstacles in the way of a seamless solution:

• Windows seems to have made webdav optional
• Firefox does not know how to handle dav protocol and Gnome does not allow to follow the links if the webdav is not already mounted.