I use visual studio with a window layout like that, but with two different files open in the right/left panes (and traditional scrolling, instead of book-type).
I set all the "solution explorer" etc panes to auto-hide, and then right click on a file-tab and use "New Vertical Tab Group" to create the 2 panes. I also then right-click on the find-results and output panes and change them to "Tabbed documents" so that I can place them in these panes.
I've thought before that having the 1 file in both panes (scrolling in sync with each other) would be a good idea too but have never seen it. Maybe there's a VS plugin that can do it for me...
You can use "Window->New Window" to get two views of the same document, so you can view it in both the left/right panes, however, they don't scroll in sync with each other.