FUSE based filesystem using ObexFTP (currently beta).
Actually ObexFS is just a thin layer wrapping a basic ObexFTP
client into FUSE callbacks.
This works well enough on NetBSD/amd64:
$ mount|grep obexfs
puffs:refuse:obexfs on k600i/ type puffs (nosuid, nodev, mounted by juan)
$
$ ls -l k600i/
total 2
drwxr-xr-x 1 juan users 0 Jan 1 1970 Memoria del tel?fono
drwxr-xr-x 1 juan users 0 Jan 1 1970 Memory Stick
$