Oh yes the blocking done by universities. Do you also know that you can get around that by using something like Socks2http and use a proxy.. Its a pain to get working but it works. Isps/universities blocking is a problem for all of P2P and isnt specific to just gnutella...

Why i think that the riaa wont succeed. One because unlike all the other networks out there gnutella is truely decentralized because its open, has many more uses than just file sharing and do to the protocol it is impossible to shut down.

Your right the RIAA does have deep pockets which is why they are pushing for things like DRM and SMDI to be standard and manadatory on everything.

As for this comment "RIAA could try to abuse the network, flood the net with fakes (read Harry Potter floods on Slashdot) or DoS or.... is Gnutella really that strong?"

Replace try to with is doing. The RIAA has been doing that for a while now flooding gnutella, abusing the network and etc. The RIAA has been monitoring gnutella for months. Gnutella is still here and as the protcol gets better i firmly believe that it will be able to withstand because its holding up now..

Right now i think the best way to improve gnutella is to improve the speed and capacity of the network with things like supernodes. Really until things like that are added which are going to in the near future its kinda pointless for me to think up ideas when others have allready sloved them. Metadata should include more than just mp3s.