This is a test page for a calendar event, which can be parsed using the RDFa GetCal bookmarklet. This is a work in progress, the markup in this page does not currently validate and the specification may change before it does.
For more information, visit the RDFa Javascript implementation page.
At the XTech Conference, I'm giving a talk about web widgets, on May 8th at 10am for 1 hour, DanC