I finally decided to install FolderShare, a file synchronization service acquired by Microsoft as a part of their Windows Live platform. The installer has been sitting on my machine for some weeks now. There where no files to keep synchronized until a week ago, so there was simply no purpose using it. But still an interesting project, similar to Plaxo, which synchronizes Outlook contacts over the Internet.
The Wiki itself is highly customizable by editing some special predefined ("shadowed") Tiddlers. This way you can translate the Wiki to any language and customize layout and styles. The list of features goes on. I've borrowed my layout from the GTDTiddlyWiki, a template for implementing Getting Things Done. The GTD-version is based on an older version of TiddlyWiki, so I decided to exercise my CSS skills transferring GTDTiddlyWiki's visuals to a standard TiddlyWiki. Using the various Firefox developer tools I've gotten pretty far. Right-click, Save As this link to get my version.
This single-file Wiki is an ideal candidate to synchronize between my work and home machine using FolderShare. I've been ready to take off in about 20 minutes, including download and install. FolderShare's usability could be a little better, but I'm sure this changes since it's currently beta and runs PHP on the server side. Microsoft will certainly change this to ASPX.