This does sound really cool, and I'm genuinely excited that there is a market for secure communications, but this solution isn't for me. I simply can't trust so

This does sound really cool, and I'm genuinely excited that there is a market for secure communications, but this solution isn't for me. I simply can't trust something in this field that is closed source. For anyone else who feels the same way but likes the sound of this, I'd recommend looking at TextSecure and RedPhone.