If you review the Apple marketing literature, I think you'll agree that "Retina" is a branding exercise, not a scientific claim or even a commercial standard. A technical claim like "264 ppi display" is easily copied and trumped by their competitors. By calling it "Retina" they are creating a brand that can't be copied by a competitor.
Anyway, where did you see Apple claim that "any improvements on resolution would be literally pointless"?
Anyway, where did you see Apple claim that "any improvements on resolution would be literally pointless"?
I'm all for 4k. Who knows.. we might actually get sharp/full raster 1080p images from DSLR's if they are advertising them at 4k. Based on the fact that the current crop advertise '1080p' but resolve nowhere near that (generalisation, I know some of them like the gh2 come close but still no cigar if you ask me).
Do you even understand the premise behind retina screens? The DPI is so high that pixels are indistinguishable and any improvements on resolution would be literally pointless.