The handheld's screen swivels using a 'self-developed ultra-thin alloy hinge built for lasting durability.' Even companies like Nintendo sometimes struggle with keeping moving parts durable on their devices, so hopefully Anbernic has come up with a hinge design that will last.
The purpose of this release is to allow app developers and early adopters to create "even better software experiences". The installation requires flashing a ROM, and if you don't have experience in software development or you expect to use the device as a daily driver, it's not recommended to proceed.