I don't think we want a tablet running OS X or a laptop running iOS or a "foldover" hybrid, but when I first read the description of the MS Surface Book and saw the rumors of the iPad Pro, I thought what would be brilliant is the keyboard section from the Retina Macbook married to an iPad Pro screen.
Docked - it runs OS X from the keyboard section logic board and can use the batteries contained in both the keyboard and screen section for some incredible runtime. Undock the screen and you have an iOS tablet that is thin and (relatively) light with its own battery and two app multitasking.
Docked - it runs OS X from the keyboard section logic board and can use the batteries contained in both the keyboard and screen section for some incredible runtime. Undock the screen and you have an iOS tablet that is thin and (relatively) light with its own battery and two app multitasking.