I think I linked to Dashboard a bit ago but Nat's been keeping a log about it with a screenshot.
For reference, Dashboard is:
The basic notion is automatic search of your personal information space as you go about your regular daily activities: reading and writing email, browsing the web, talking to people on IM (at least, these are my regular daily activities).As you interact with a given object (an email, a web page, a person on IM), the dashboard is supposed to automatically populate with nice, visual representations of related objects in your little universe. And then, of course, there are various ways that you can do things with those objects: click to open or activate them, drag and drop them onto another application, etc.
Edd gives some thoughts about Dashboard and RDF.
