Not really. I don't know how much you know about how it actually works, but it's a much bigger mess than what you are describing in the article. OS X isn't real

Not really. I don't know how much you know about how it actually works, but it's a much bigger mess than what you are describing in the article. OS X isn't really built from the ground up to be resolution independent, and linking to articles about quartz is kind of misleading, given that a lot of the graphics layer of iOS is completely different than the graphics layer of Mac OS X. It may be easier on OS X than other platforms, I don't really know, but Mac OS X, despite a lot of talk over the last 4 years or so, remains not fully resolution independent, and the new iOS approach is a pretty big departure from what has been going on in Mac OS X.