Most practical security measures are about striking a (better) balance between practicality and security. You're probably right that there is no viable device w

Most practical security measures are about striking a (better) balance between practicality and security. You're probably right that there is no viable device without binary blobs, but if the (corporate security policy) conclusion from this is that you can't use smartphones at all, practical experience shows that people will be using their private (vastly less secure) phones. In that case, it's way better to provide a much more, if not perfectly, secure phone (and sensible policies for using it). At least, this is the market I perceive the Blackphone to be addressing.