After installing this Android App, you can share images from your gallery to your WebDAV server. Furthermore, every picture you take with the camera will automatically be uploaded to your WebDAV server — unless you turn that off, of course.
Why would you want this? If you don’t have automatic Picasa uploads enabled due to privacy concerns or other reasons, you still might want to backup/archive every picture you take. Also, if you run a WebDAV server on your workstation, automatically synchronizing your pictures is much better than having to import them manually with gphoto or other programs.