I've thought for a long time that you could have it both ways. If it's hard to completely decentralize networks (e.g. meshnets), then why not decentralize the computer?

I've got some ideas for an execution environment based on HTML5 and eventually-consistent cryptography-based distributed databases, but they're only ideas. It'd be a much bigger bite to bite off than ZeroTier One, and I don't have that kind of time/money right now.

The overall idea is to have a virtual cryptographically-defined system boundary that could be loaded -- invoked -- on any hardware running the appropriate VM.