Thanks for sharing! I recall reading his Surface reviews previously. I appreciate his honesty, and Microsoft's willingness to tap into him for advice on their products.
the surface (pro 3 and onwards) has an ever-so-slight delay compared to the cintiq and as i follow gabe it looks like it's something he has made his peace with.
some artists just absolutely cannot get used to it and so moving off to surface is not something they can do yet.
that's just the value prop of cintiq. the display may be crap but the drawing experience is by far and away the best in its class.