Checkout the interface of a dual-screen ‘Galaxy X’ prototype
Another mode is similar to the Nintendo 3DS with the apps or games drawing different parts of their interface on each screen. This mode will obviously depend on Samsung APIs as Android has no native support for this.
By the way, the recently launched ZTE Axon M – also a foldable, dual screen phone – works in much the same way.
Anyway, Samsung has also thought of some interesting uses for the second screen when the phone is folded. For example, the phone could show the cover of the book you are reading to get an experience similar to real books – where everyone around you knows you’re reading A Clockwork Orange because they can see the book cover.