This is an excellent solution. A bit like Ripple's concept of trusting a set of validators are unlikely to collude against you, without having to trust any sing

This is an excellent solution. A bit like Ripple's concept of trusting a set of validators are unlikely to collude against you, without having to trust any single one of them: https://wiki.ripple.com/Consensus#Not_colluding https://wiki.ripple.com/Consensus#Not_colluding Of course it doesn't stop any particular government from making it illegal to sell unbackdoorable phones in their country.