Was just looking at the Clipboard document, and have a suggested use case for copying-and-pasting citation metadata enhanced content:
User selects text from a web page. When copying it into their word-processing application, the citation metadata travels with it, and the word-processor automatically adds the appropriate citation to the document.
Bruce -- Bruce D'Arcus OpenDocument Technical Committee and Metadata Subcommittee Co-Project Lead, OpenOffice Bibliographic Project
