There is another (unrelated) project on CPAN named FUSE. Perl bindings for fuse have name Fuse, so I would suggest to call your module Fuse::FTP after all.

FreeBSD support for Fuse is somewhat experimental (most of tests are broken on FreeBSD), but filesystems do work (I hope, if not, please bug me :-). There is plan to rewrite test suite which would also fix FreeBSD problems.