It looks neat but I’m confused by the layout. It has a smaller screen on the “outside” and then a big foldable double screen on the “inside.” Why? Why not wrap around the outside? You’d get to use all of the screen real estate at once, and the fold would be around a larger radius. I’m sure there’s a good reason but what is it?
From a mechanical perspective, a screen around the outside would create a wrinkle rather than a crease when opened, and that wrinkle would be substantial. The phone would need some sliding/rolling mechanism to pull the screen flat. Possibly doable, but finicky and fragile. Especially considering elements like cameras, touch ID, etc.
From an experience perspective, I imagine it's just more satisfying to open it like a book. A screen on the outside would mean the inside is almost empty, just utilities like camera lenses.