Nothing I have read about Snowden indicates that he is actually some sort of uber-hacker or capable of the type of software engineering that this proposal would entail. Is his plan just to use his name to fundraise (In bit coin, I guess. I doubt many people are stupid/brave enough to attach their name to a donation towards anything to do with this guy) and attract talent, or is he honestly going to try and release code himself, which will probably be of poor-to-average quality and expect the world to adopt it?
I mean, let's be honest: Either way, whether he's going to just try and brand the stack or contribute, we have technologies that are perfectly good (that is, however, not to say perfect) already -- its just they aren't particularly widely deployed. How many organizations are running IPSec internally, other than just for site-to-site VPN tunnels? How many organizations are deploying DNSSec outside of governments and the military? How many organizations are using PGP or similar asymmetric encryption between employees? Making it easier might help, but chances are that the vast, vast majority of individuals aren't going to jump on any of these technologies in any great numbers unless they are mandated to (like at work, where they don't have a choice), but it isn't as if the government is going to make it a requirement that you try and "spy proof" your computer and communications.