I'm not sure if this is the done thing or not (I'm relatively new to posting on Hacker News so apologies if not) but if anyone wants an online version of TiddlyWiki (that handles revisions, multiple users, has a RESTful API, etc), then we're currently working on a service called TiddlySpace (http://tiddlyspace.com), which is basically an extensible online note taking app based on TiddlyWiki. It's on GitHub too.
I also hacked together TiddlyBox, which lets you leave your TiddlyWiki on your Dropbox and edit it directly. It's a simple WAR file that'll run in any Java container (Jetty, Tomcat).
Not in the near future no. In the far future, it depends on how the new filesystem api turns out. There are some thoughts going on about using node for such things, though they are only that (thoughts) at the moment.
I'm not sure if this is the done thing or not (I'm relatively new to posting on Hacker News so apologies if not) but if anyone wants an online version of TiddlyWiki (that handles revisions, multiple users, has a RESTful API, etc), then we're currently working on a service called TiddlySpace (http://tiddlyspace.com), which is basically an extensible online note taking app based on TiddlyWiki. It's on GitHub too.