http://tante.cc/2014/01/16/blackphone-build-hardware-software-broken-promises/

I would add to such great post that they will never have the resources to have control of sw, hw and manufacturing of such a full featured device. It would run into the hundreds of millions of $ or more.

The only way to achieve such levels of assurance with single or double digit millions of $ is through extreme hw and sw minimization, and a very small and thin form factor handheld devices that does not claim to replace the users ordinary smartphone, but complement it and uses it as an hostile environment to get on the net via bluetooth:

User Verified Social Telematics.