It ain't bad, but I have a Surface Pro 3 (the Surface's are awesome, btw).

Yeah, it's massive drawback. I prefer it anyway as it incentivises better features (at least I want it to): I can envision a reader that shows the edges of the pages so you can flip through many at a time (ie think of how the pages don't line up when the book is opened flat). I use the Microsoft Reader so I can use the pen so probably no such luck for me.