I'm sorry if I missed the point about WebDAV, but it doesn't sound like it works yet in our situation. I just thought you could use a simple little text file to say 'this file corresponds to this chunk of content', and then use a simple POST to make the update. For database content, I don't see why you need WebDAV, I mean isn't WebDAV just trying to use the filesystem as a database and managing access, etc. Even if WebDAV can access object properties, I believe we can do that with OpenACS, with HTTP, right now.
Adding or editing a large chunk of content in a textarea is less than ideal, other than copy & paste from a real text editor. If content is short, it isn't that big of a deal.
I'm probably confused as usual, if anyone has any links to good WebDAV products, please post 'em.
