That looks like a fantastic feature, especially due to the fact that you can use Apple Pencil to control your Mac. I wonder if that will cannibalize Wacom sales. Having used both Apple Pencil + iPad Pro and a Wacom tablet (separately), I found it real hard to draw on the Wacom table without seeing what I'm drawing under the pencil.

Wacom is one thing, but I'm wondering how quickly Duet [1] will shut down.

[1] https://www.duetdisplay.com/

Wacom also sells drawing tablets with integrated displays [1]. I've never used them or an Apple Pencil, so I don't know how they compare, but Wacom isn't totally caught out here.

On the other hand, I can see a lot of people buying (or already owning) iPad Pros and using this feature who might not buy a dedicated device for it.

[1] https://www.wacom.com/en-us/products/pen-displays

This should be higher. When I am on the road, this will be a huge help. I like having my email, calendar, and slack on one screen.

Damn, it's going to get tough for the people from Duet Display