Steve was aiming at creating “a single piece of glass you can use to read email on the toilet.”

Obviously that goal was achieved but the direction the iPad went in was different than its minimalist and cheap original trajectory.

Adding a stylus and all the ‘Pro’ stuff confused what the iPad originally was, and now it’s more closely aligned with a new form-factor MacBook with a limited OS.

Maybe Steve would have gone a different way, but perhaps all computing devices are destined for the same convergent evolution … a kind of carcinization of form factors and purposes.

IMO, the Air should be a touch MacBook (Interface kinda like GNOME, hardware like the surface). The iPad should only be the mini (more comfortable for reading and viewing). And then the laptops are the Pro MacBook and a cheaper Macbook (the current Air 14). Maybe that's where macOS is headed?