Perhaps, though, this is the kind of kick Adobe needs. Photoshop, for instance, was built on Carbon until CS5, and needed some tricksy memory tampering to keep the whole session from being a swap exercise. (Even on Windows, I've found that if I didn't already know what the dialog contents were, I'd never figure them out half of the time -- the text doesn't fit into the space they've allotted for it, even for single-line legends.)
The features and ecosystem keep me there, but their underpinnings have lagged, and apart from the splash screen (which is now "creative" but butt-ugly), they haven't spent a whole lot of time making sure the GUI works on any machine, let alone on Retina-type displays.
Being able to judge adjustments for print at near-print-size has always been a major hole in the feature set. That's not Adobe's fault—until very recently, there were only a handful of automobile-expensive monitors requiring special interface hardware that could provide such a function—but they should have realized that if the subject ever came up, designers, ADs and photogs would be all over it in a flash. That doesn't take a JREF challenge winner to predict—the phone-sized hi-rez monitor should have been a clue that it was just around the corner. It should have already been in the pipes, even if it wasn't ready for prime time for the launch of CS6.