the gnutella network is a serverless peer to peer protocol that has been giving the RIAA fits for copyright infringement. It is also a really good way to transfer large files around the internet.
For the first time in my Linux experience I was able to click on a program, download it, install it, and have it up and running the same way windows users can. Frostwire is the client I'm now using (and looking for some documentation that I hope *someone* has and is sharing). The gdeb installer feature is going to make Linux accessible to the masses in a way that "sudo make" terminal installs can not.
Normal users want to be able to USE their computer, not program it. Point and click program installation is completely awesome for normal end users. Ubuntu Linux ROCKS!