I just noticed that Mao Chen, who was on the team for creating the Linked Notes feature in OneNote 2010, just posted an addin for Firefox to add linked note taking support. Check it out at http://blogs.msdn.com/mao_chen/archive/2010/02/22/linked-notes-taking-in-onenote-2010.aspx. I think this is the first addin I’ve seen for OneNote 2010 – congratulations, Mao!
Questions, comments, concerns and criticisms always welcome, John
(Horrendously sized image of the addin in action)