I stopped by the Apple Store near my office and managed to get a short video... just to see with my own eyes. Initial impressions - the screen looks damn good, but if you own an iPad3, it's nothing you haven't seen before-- just larger. Retina really raises the bar for how a screen should look! Now, I played around with the scaling a bit, and each of the scaled modes looked equally as good, no visual degradation at normal viewing distance. I could tell the GPU was struggling a bit around screen transitions. So I reset it to "optimum for retina" mode and did some tests... mainly just toggling between full-screen and windowed mode with iPhoto, and Expose a couple of times. http://www.youtube.com/watch?v=0VvaaLAfISU So, uh.... yeah. This is (presumably) with the HD4000 chip driving it, I'm sure the nVidia would've done much better, but my initial impressions are that the new screen technology is a couple steps ahead of the latest Intel GPU's. Not good news for people like me waiting for a 13" retina machine which might not have a discrete graphics chip.