Not sure what exact shape the author imagines this might take, but I've had this idea (dream) in the back of my mind for a long time.. We need a standardized protocol that is open (I.E. not controlled by or dependent on 1 or 2 companies), private and secure by default, and dead simple to setup. For a while a few years ago I was really excited about the Bittorrent Bleep concept. The fact that it's been discontinued demonstrates just how important it is for these protocols to be open source and have multiple implementations!
Imagine a protocol that was P2P, supported chat/messages/voice/video, group messaging, integrated microblogging, ability to follow your friends and rank their posts with your own algorithm! Imagine if it was modular. You could choose from a half dozen post ranking algorithm plugins, or write your own, or sign up for extra-value services from companies that were competing for your business (maybe providing curated post lists or cloud storage of your posts/PMs).
I realize that absolutely none of this is innovative on it's own. We've been able to send encrypted messages/host blogs/script our own algorithms forever. But it's highly fragmented and requires a certain technical acumen that many people just don't have. My grandparent's aren't going to host and configure their own blog. Not going to happen. But, while it lasted, Bittorrent Bleep was entirely doable for them.