A WebCalendar, using PHP and supporting all the databases you want, it seems.
Katie is to be a CVS replacement with a twist of NFS(!?). Subversion is another such replacement - aiming at all the current CVS features as well as directories, renames, symlinks and meta-data versioning and more. WebDAV.
IBM makes a cutish small keyboard for desktops - with the trackpoint on it. I think I'd like one.