I think the idea is that it (or some future incarnation of it) eventually replaces most static web hosting, FTP, Bittorrent, and quite a bit of dynamic web host

I think the idea is that it (or some future incarnation of it) eventually replaces most static web hosting, FTP, Bittorrent, and quite a bit of dynamic web hosting. Oh, and maybe messaging stuff like IRC. Sounds like a big piece to chew, but I think the main hurdle is replacing HTTP(S) on the client side.