If the WIZ was sensibly equipped with WLAN, we could just run an onboard torrent server that shared any directory we desired.
I plan on doing something like this for Pandora, setting up a "shared tree" of stuff that is just maintained by a torrent daemon for the purposes of publishing Pandora-specific content. Something like, to add to this public filesystem, publish a torrent file of your directory, and if someone wants to add it to the Pandora shared_tree on their local machine, they just drop the .torrent file in and down it comes ..