Haha thanks for summarizing the positives
The pen on base idea is definitely possible however you will loose the metal back in tablet mode so bit of a comprimise…How about instead you can by a separate keyboard blade that is a massive trackpad + pen capabilities, you could also use it via Bluetooth
I do have an idea for a better surface book but you guys will have to wait a week or two, also that design is a little harder to pull off.
Just to play devils advocate (on my own design no less) the bad points are:
*Plastic hinge wont look as good as a shiny metal one, It wont look ugly though just not as ‘premium’
*overall the device will be about 2mm thicker than comparable laptops (but they wont be as cool ).
That’s about it