Microsoft also had Windows XP Tablets [1] and also WinCE/PocketPC many years before.
While the Duo is more subtle for some changes, it might show us the "new" Apple where the innovation comes from fine-tuning and getting a mature product to the market.
At least from their presentation, it looks like they sat on the fence and looked at pretty much any good or bad thing that happened during the past years.
Seeing some reviews on the Samsung Fold for example, mentioned the speakers feeling weird as the audio orientation is fixed to the speakers location. Those little details make a difference.
I really hope modern Apple would go back to the details and nuances.
> the "new" Apple where the innovation comes from fine-tuning
That's actually the old Apple. Before the iPhone (and after Jobs' return) it was their standard operation procedure: the iMac was a refined workstation, the AirPort was a refined WiFi router, the Time Machine was a refined NAS, the iPod was a refined MP3 player...
Even after the iPad, they mostly cranked out middling stuff like the airPods, all the way to the Vision. They would take whatever good idea was floating around the hardware market, give it a careful polish, and sell it at twice the price. And there is nothing wrong with that - constantly chasing revolutions is risky (see the Vision).