So I've written an application to do the job.
The latest version now includes friendly configuration and integration with third party applications such as S2U2.
SlideActions and notes (this is a link to my server, so it always has the latest version).
Because I don't have the time and I've been asked for new features, and there's been volunteered help I've provided access to SlideAction's SVN repository.
I almost didn't because I never bothered to comment code I didn't expect others to see, but, well, I'm not so precious.
Here's the repository's URL::http://opensource.puna.net.nz/svn/slideactions. Accessible both by web browser and SVN client such as TortoiseSVN.
Anyone wanting to contribute can create a branch (such as opensource.puna.net.nz/svn/slideactions/branchs/new_branch) and I'll merge working features into the main branch.