I think the use case here is for people who have an iPhone as well as an iPad they use occasionally for reading/watching stuff, as well as business people / execs.
Now you can (sort of) have both in one device. Reading the rumours, I was completely disinterested. Now I’m actually tempting to ditch the iPad Pro and iPhone Pro and have a Duo replace both. I’m excited to have a go with one in the Apple Store.
Shame it’s so damn expensive!