What part of "Apple said this, this and this" in my post don't you understand? I clearly said that Apple said during their Keynotes that it's based on viewing distance and pixel density. I don't know how you missed that. Apple tells you everything you need to know about what they're doing in their Keynotes, that's that.Right, so yet again you've failed to provide us with what Apple actually have published (because they haven't as we all know), and yet again you've regurgitated yet another third party website which is not endorsed by Apple.
Stop trying to pretend that Retina means anymore than what Apple have published, it's misleading people.
And I quoted professionals on the subject, which it seems you've failed to even read. Here it is again:
The screen is marketed by Apple as the "Retina Display", based on the assertion that a display of approximately 300 ppi at a distance of 12 inches (305 mm) from one's eye, or 57 arcseconds per pixel[42] is the maximum amount of detail that the human retina can perceive.[43] With the iPhone expected to be used at a distance of about 12 inches from the eyes, a higher resolution would allegedly have no effect on the image's apparent quality as the maximum potential of the human eye has already been met.
This claim has been disputed. Raymond Soneira, president of DisplayMate Technologies, said in an interview with Wired magazine, that the claims by Jobs are something of an exaggeration: "It is reasonably close to being a perfect display, but Steve pushed it a little too far". Soneira stated that the resolution of the human retina is higher than claimed by Apple, working out to 477 ppi at 12 inches (305 mm) from the eyes, or 36 arcseconds per pixel.[44]
However, Phil Plait, author of Bad Astronomy, whose career includes a collaboration with NASA regarding the camera on the Hubble Space Telescope, responded to the criticism by stating that "if you have [better than 20/20] eyesight, then at one foot away the iPhone 4's pixels are resolved. The picture will look pixellated. If you have average eyesight, the picture will look just fine".[45][46]
Yet you seem to think it's coincidence that when you calculate the viewing distance for a 3.5 inch 960x640 display for a person with 20/20 vision, that it comes out with the same results!
EDIT: Go here: http://bhtooefr.org/displaycalc.htm, click "size" up the top left, and enter a distance of 10.5 inches and you get 327 PPI -- that's the maximum PPI before individual pixels become indistinguishable at that viewing distance. Coincidence? NO.
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