The Calgary Apple Store setup the display models today. The screen is simply incredible, I tested it with a number of HD test patterns, and full 2880 sized images, and processed some Final Cut video. In Retina Mode, Safari full screen will slightly scale full sized 2880 png images, its scales only to account for the URL bar at the top, once the image is copied to and viewed in preview it displays 1:1 pixels. The More Space 1920 wide mode was surprising good as well, 1920 HD photos they scale better than I've seen ever before on a non native resolution panel. LAG - yes it is easily seen when switching from windowed to full screen mode in Safari etc, but the quality of the display otherwise make it a something I'd trade off for the high res IPS screen. After using the Retina Pro I walked over and tried some of the standard Pros and iMacs. The Retina conditions you, the models just look pixelated and now poor in comparison. My only negative is the large footprint of a 15.4 device, after getting used to iPads and Airs, carrying, using on the lap that big of a machine will take some adjusting too.