I'd argue that while the word Retina happens to be a marketing term, in this context it is just as relavant. What we're really discussing is "do the pixels disa

I'd argue that while the word Retina happens to be a marketing term, in this context it is just as relavant. What we're really discussing is "do the pixels disappear?" - the reason they used the term retina display is that they are indistinguishable to your retina. "315ppi" or "super high ppi" is meaningless to me even as a techie because for me the gold standard for text clarity is 600dpi on laser printed paper, so even though it's adequate for the screen, it wouldn't impress me unless I saw it. "Looks like glossy magazine print" makes sense to any consumer. Again, yes in this case Retina happens to coincide with the trademark, but it's also a functional property, one that's relavant to the discussion.