Deluge is a fully-featured cross-platform BitTorrent client. It is Free Software, licensed under the GNU GPLv3+ and adheres to freedesktop standards enabling it to work across many desktop environments.
pamwe neGTK-gnut
GTK-GNUTELLA ISANGANO / Mutengi weGnutella Peer-To-Peer Network.
Tixati
Tixati is a New and Powerful P2P System