Today at Le Web 3 in Paris we launched Socialtext Unplugged, the offline wiki. On my way here, I used it by clicking on the Unplug icon, downloading a collection of wiki pages, got on a plane and edited them offline. Landed, connected and synched up changes. While supporting the occasionally connected user is important (we already support the continually connected user with Miki the mobile wiki), how we do it may be just as much of interest.
The blue Unplugged icon is similar to an RSS icon, which signals to a user there is a different way to use the content outside the browser. In this case, to use the content offline.
Socialtext Unplugged is collaboratively developed with Jeremy Ruston of Osmosoft, the creator of TiddlyWiki. Socialtext Unplugged is an application within a single HTML file, which also means it is cross-platform. It downloads as a Zip file, but synching is through Socialtext's Wiki Web Services. TiddlyWiki is essentially a personal non-linear notebook. TiddlyWiki and Socialtext are Open Source.
You can try it at the Socialtext Customer Exchange or Open Source Wiki.
