hell yeah. someone took the python filesystem driver idea to its logical windows concluson. witness the gmail drive shell extension.
is there still a market for the xdrive/.mac style "drive in the sky"?
see also:
http://bengt.org/archives/2004/08/gmailfs.php
http://bengt.org/archives/2004/07/my_best_hopes_i.php
http://bengt.org/archives/2004/07/my_worst_fears.php