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.