Duo is an utter facepalm. What are they thinking. It doesn't make the device cheaper or lighter, in fact it makes it heavier and more expensive. It constrains your interaction and UI model. It introduces unnecessary mechanical complications and points of failure. It made sense for Nintendo on the DS because it did reduce costs and the device could be small and light enough for it to work. The Duo is just different for the sake of being different though. Classic solution in search of a problem.

We could have had Windows 10X as well, but apparently the new blood on WinDev has lost track of what made Windows great, and are now as headless chicken running into all directions.

I agree with you 100%, I've never even heard of or seen a use case for the dual-screen flip smartphone

That said, my friends seem to love their Samsung foldable phones. "Having a tablet available at any time in your pocket is a game changer"

(I don't understand how it's a game changer, but there you go, one counterpoint)

I watch everything on an iPad. For me personally, it’s a minor game changer to be able to do all that on one device. Same with the minor notes, management, journaling I do on it. Though as you say. Not a game changer because of the pricing. If this was available at the same price as current devices, I’d consider that a moderate game changer.

It's just not for you. Bigger dual screen makes sense for some people.