Now that encryption on the fly of web pages adds virtually no overhead to the loading of a website, we could build encryption right in. The SSL business if one of the main pain points on the Internet: a more decentralised system could be designed to know whether to trust remote servers or not, effectively removing the certification authorities from the equation (CA are an — almost — single point of failure and make a lot of profit from that monopoly).

The SPDY spec and the HTTP2 draft have a lot of good ideas too regarding the implementation of the communications.