Hi I have a different couple of suggestions and questions.
My main machine is a windows machine with Office Ultimate 2007. I heavily use: Outlook, Onenote, and Word
My notebook is an Apple macbook with office 2008.
I would think that your Office Live product could be a way to help these programs to work together.
Even better---changes made in Office 2007 docs, change automatically online and then editing available online. think of it like what you did with Onenote syncing---