I think almost everyone here is missing the point of this camera. In the post truth AI future, this is the camera you want when you photograph the billionaire or President or your spouse doing something awful. Any other photo proof won’t work because it can always be called fake. And yes I’m being serious. You are missing the point if you say the quality isn’t good enough or it’s too slow or bulky. The idea is the provable authenticity, which is going to be very important in the coming decades.
I imagine that, if attested cameras like this come into any sort of regular use, you'll see additional layers of metadata mixed into the signature—a depth map, GPS, accelerometers, operator biometrics etc, none of which are necessarily infallible, but which certainly create considerable barriers to faking things.