Absurd it took this long when they basically led the field in touchscreen innovation (especially on the UX side of things)
I always thought the Surface Book design by Microsoft was very Apple like and it always seemed like the logical step: let the screen detach but keep the extra horsepower in the base.
Flip-around convertible or kickstand with soft-cover keyboard both work a lot better, but also both have trade-offs.
I somewhat fondly recall my old HP Windows Pen PC where the screen would twist and lay back down over the keyboard. That thing was a brick, but it had the correct balance for a laptop and the keyboard keys were out of the way in tablet mode. Maybe Apple will bring that form factor back, but with a super thin OLED display and a really lightweight device.