I found this posted to todo list, moved here: --Joey
First pass at an attachments plugin. See attach for details/docs. Here's the diff, and here's some technical notes. There are still various things I want to fix and tweak, but it works reasonably for me as is.
I guess I missed this when the plugin page was posted last September, and since the soc stuff wasn't updated, I didn't realize this was Ben's soc work. Which is more or less why I didn't look at it.
This plugin would need quite a lot of work to finish up, I do think it was taking the right approach, sorry I never followed up on it.
In the meantime, I've written an attachment plugin that does most of the same stuff, and behaves closer to how I originally sketched fileupload as working.