Considering the most important parts of the Duo are the screen and the hinge, yes it's a first generation device.

They bought that stuff from Samsung, and Samsung has been doing it for a while now. So no, the screen and hinge aren't really first gen.

The screens are made by Samsung, but aren't designed by Samsung. Samsung's display and their phone division are completely separate.

The previously released iPhone Air looks very similar to the fold, and I believe it even used the Apple modem C1 generation.

Iphone Air uses the C1X, The C1 was used in the 16E.

Live resizing apps and dealing with apps that don't have a specified new design for the unfolded screen size is one of the big hurdles for folding phones that's new to the Duo for Apple so it remains to be seen how well that works for random apps.

It'll be interesting to see how many/how quickly apps adopt the UI that lets you make the most of the foldable screen. If it doesn't sell in big numbers app developers might not feel the need to and the user experience will be subpar. ...but I suspect it will.

> It'll be interesting to see how many/how quickly apps adopt the UI that lets you make the most of the foldable screen.

For iOS 27, apps are automatically automatically opted in to resizability. Apple was clear at WWDC that apps need to dynamically adjust to any available scene size at runtime, not just for iPhone Duo, but also for iPad windowing and iPhone Mirroring on Mac. There may be a grace period, but Apple hasn't shared one AFAIK.

Well, at the very least the ability to have a larger browser screen on landscape or having two apps side by side is already good on its own.

There is a lot of software support needed to make this work great. So first generation of all that for sure.

Admittedly, software that's influenced by the iPad and iPhone, so there is new software, but it's not that new. Multitasking in iOS has been a thing for a while (iPad).

I'm not trying to discount the efforts involved here, just pointing out that they aren't starting from scratch. And much of the required features to support a dual-screen (triple-?) phone has been in the works for a while.

Well, the screen is the new/groundbreaking part!