I'm a little surprised that someone wrote this. I guess I'm still stuck in the mode of thinking that javascript is a language for writing client side code in browsers, when in fact, you can run javascript on servers.

If that's the case, then I suppose decentralized architectures are possible if the javascript engines in browsers get faster. You can possibly run an entire mini-server in a browser that talks to other mini-servers to share files or location information on mobile browsers.