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.