Accessing WebDAV on PDAs

Saqib Ali asks: "Nowadays, WebDAV (Web based Distributed Authoring and Version) is becoming very common in large corporations. We are also adopting WebDAV for file sharing. All the major operating systems support WebDAV, however I was wondering if there is any support for WebDAV on PDAs. I think lots of people will be interested in WebDAV support for PDAs. Does anyone know of a WebDAV client for PDAs? Especially for Pocket PCs, since they have Pocket Word and Excel? If not, I would be interested in starting a Open Source project for implementing this. Any good ideas on how/where to start?"