Of course by default any non-retina enhanced Mac app will just be pixel doubled. However, one that is retina-aware can make decisions about UI element sizing t

Of course by default any non-retina enhanced Mac app will just be pixel doubled. However, one that is retina-aware can make decisions about UI element sizing that takes into account the screen being much more readable at small sizes. I am at WWDC and have seen the actual hardware cycling screenshots of the retina-enabled Final Cut UI, and they appear to be doing exactly this -- the screen just feels bigger than a naive 1440x900 screen doubling would accomplish. Additionally, for any application whose content is tied to the font size of the content (think text editors, terminals, IDEs, etc), simply lowering said font size will directly increase the amount one can see on the same sized screen. With that said, please explain to me how I am mistunderstanding screen real estate.