someone said: "It doesnt belong to anyone"

And that's why "downloading on gnutella" is soo horrible. There are dozens of crap clients out there that 1.) Don't support the latest protocol/features and 2.) Don't force users to share what they download. Don't get me wrong. I like the idea of an open protocol, but there are several problems with an open protocol. These probelms are apparent in gnutella.

The gnutella protocol without Ultrapeers is very bandwidth intensive. For me, maintaining 4 host connections in gnutella averages ~50kbps bandwidth utilisation. (This is enough traffic to overwhelm a 56k modem). With no uploads going in KaZaa, I sometimes see 0 bandwidth utilisation for a few seconds. This is because all clients on the FastTrack network are either a supernode or a "leaf" node. In gnutella, a large portion of most peoples bandwidth goes to maintaining host connections. Not ever client has Ultrapeer technology. KaZaa and Grokster are licensees of FastTrack; they use the same program with the same advanced features.