Question : Can WebDAV be configured with Anonymous access under IIS 7.0?

Well, can it?  And if so, how?

Answer : Can WebDAV be configured with Anonymous access under IIS 7.0?

This page sums it up: http://learn.iis.net/page.aspx/360/what-is-new-for-webdav-and-iis-70/

You can get properties anonymously, but you can't upload without logging in some way.