What's the catch about the new display? Your files look best when they're running on apps specifically updated for the Retina display. We checked out several high resolution RAW files in Aperture and they looked incredible. We are interested to see, though, how similarly-sized images look in software that's not optimized for the display. We'd be nervous to make any critical image-editing decisions on a non-Retina-optimized app because, when viewing in one of those, the image (or any info displayed) undergoes a sort of interpolation process. In it, each pixel is displayed four times, so your image may look a little "grainy". The Retina-ready version of Photoshop was on view in beta form at the WWDC this past Monday, so we are hoping that means that the updated version of CS6 will be available soon. In the mean time, all Apple’s apps that ship with the machine are Retina-ready, as are Aperture and FinalCut Pro.