umm, isnt the whole gnutella network built upon using ip address's? this is the most common form of tcp/ip communication.

if the riaa/mpaa wants ip address's all they need to do is set up a bot client on the network that collects them, they already do this, and to me, i dont give a rats butt if they have mine or not. my isp does not give out my info unless they have a warrant.

so whats the problem? because everywhere you go on the internet, or download something or even just connect to another client, your ip address is usually being logged somewhere, by something or someone.. so this is something that is not very new and is very common accross vast networks.

it wouldnt take much resources if you had a few good mirrors with a decent connection. then all you would need is dns-round-robin to distribute the resource needed.

i would hope to see this feature in the near future because it will give the oportunity to search out of your net horizon.

and no it wouldnt be hard to implement either.