I picked up a Nexus 7 while my rMBP was "in the shop," and have been really impressed with it so far. One thing I noticed, however, is that when viewing the screen it seems to be easier to discern individual pixels, despite the Nexus 7 having a higher pixel count than Retina devices. You can sort've see horizontal rows of squares which I'm assuming are pixels. They're especially visible on a pure white background. Is this just something to do with the type of backlighting, and not the actual pixels, or is the Nexus 7 screen in fact not as dense as, say, a rMBP or iPhone screen? Fonts / Icons and all that look slightly better on the Nexus 7, but nonetheless you can see this oddity on solid backgrounds. Strange.