Let's presume, one uses a 2x1 scaled setting (best for retina). I don't quite understand, what happens, when you move a window from a retina screen to a non-retina one. On one side you have high res graphics, on the other low res. Is there any flickering as you move the window as at some moment it has some elements carrying high res images and others low res. How about window size? If you have a window on Retina display that is let's say 500 pixels high (1000 on retina display). What happens when you move it? On the other side is it 500 or 1000 pixels high? It might sound silly, but I plan to use the rMBP with a standard 24'' 1920x1200 screen and would like to know how a multimonitor setup copes with retina-nonRetina configuration. Thanks!