I think it's interesting to think that we have these different sorts of encryption, and that because the public hacking/enthusiast community says it's secure, and can't be defeated, means that there is no way to break encryption. I know it sounds super conspiracy theory, but it would not shock me at all that there is easy access to a supercomputer or network of supercomputers that the powers-that-be can use to crack encryption in a second or two. And all this stuff is just to make the public feel a little more warm and fuzzy.
So that all being said, I don't understand how this could be secure if it's going to a non-secured phone on the other end. Even if it's sent secured from this handset to a server, it gets decrypted at that server and sent unencrypted to the other non-blackphone. Pretty pointless in that case.
Curious if the components used within the phone are the same off-the-line parts that every other phone manufacturer uses. With all the rumors that the hardware itself is engineered to allow for snooping, all the software-end encryption doesn't matter if the people looking for stuff have access to it at the hardware level.