With it you can easily access public FTP via the file system, for example the one from the free university of Berlin:
-$ ls /ftp://ftp.
+$ ls /ftp://ftp./
But you can also do this very easily yourself:
and you can access FTP sites via the pseudo-directory ftp:, for example with
-$ ls ftp://ftp.
What you do here is setting up the translator /hurd/hostmux on ftp: and passing it the translator /hurd/ftpfs to use for resolving accesses as well as / as additional path component.