Ok heres what I am currently using for a portable torrent system:
I have the downloads and torrents default to "C:\Documents and Settings\All Users\Documents" folder so the main IO is on C:\ and not the flash drive. This works well for now, but how hard would it be to make this an official PortableApps version of µTorrent? Are there any licensing issues? could there be any performance increases with a customized PortableApps version?
p.s. µTorrent is a great product which everyone should use.