I think an app store would be a great idea for canon, but i don't think Canon will release a RAW recording app. If they do, they will charge 1-2k for it.
Thanks so much for the review!
I ran across this how-to-video.
He feeds a 4k video out of A7S into the Atomos Ninja downscaled to 1080p.
This method apparently gets crisper 1080p images.