The iPhone is so powerful now I don’t understand why they don’t sell a dock for it that runs a desktop environment. or a laptop enclosure where you drop it in as the trackpad. I’d be back on the upgrade cycle if they did.
Iphones can connect to external displays too, with an adapter. But I don't see this being influential until there's a framework for the second dosplay, mouse support etc
The main difference to me is that now it's officially sanctioned, and even mentioned on Apple's material (shown in the keynote, etc).
But as of now, very early days.