Give me a shout directly and we can talk about (at the very least) what the requirements for this would look like.

We had a communication problem here.

In your post you said:
“A quick Google search turned up a WebDAV project as part of the Google Summer of Code, but it’s intended to expose the Drupal database via WebDAV (for backup, or alternate interfaces…)”

So, my WebDAV project intended to be an Interface between drupal modules and the WebDAV protocol (RFC 2518). The first module which uses this API is an “webdav upload module”, who basically allows the user to upload files and attach it to nodes, like the upload.module.

“Any ideas on how a file uploaded into Drupal could be placed into a user’s institutional WebDAV space, rather than in Drupal’s /files/ directory?”

Using the webdav.module, you get a ?q=wevdav/ where your drupal works like a WebDAV server, doesn’t look to be what you want, am I wrong?

About you comment:
“Fabiano, I didn’t get very far – basically just as far as identifying the problem. Do you have Drupal speaking to a WebDAV server?”

No, I have a Drupal speaking as a WebDAV server…
It implements the RFC 2518.

May we continue this talk by e-mail?

[]s

By now I’m trying to fully implement a way upload files with WebDAV.
I think that should be great to talk about it with you.