Hey guys (and gals), I was recently explaining to my mom about what retina display was and the problem about making the screen bigger and she suggested an idea that I couldn't seem to find a flaw with. What if they were to make the resolution triple that of the original iPhone on a 4 - 4.3 inch screen, keeping the 3:2 aspect ratio? So instead of 960x640 resolution on a 3.5" screen for "Retina Display", it would have a resolution of 1440 x 960, preserving the 3:2 aspect ratio and keeping the pixel density well above 300 on a larger screen while also making it easy to scale from the original iPhone Apps. Obviously that is a really high resolution already but recently with Sharp's IGZO panels, they were achieving pixel densities of up to 498 ppi! http://www.theverge.com/2012/6/1/3056490/sharp-caac-igzo-498-ppi-display-prototype I haven't done out the math yet but they were able to make a 6.1 inch display with a resolution of 2560x1600 so wouldn't a 4 - 4.3 inch screen with 1440x960 also be possible? Then you would be scaling the original iPhone Apps by 3x's instead of 2x's that they did for the iPhone 4's retina display so 1 pixel on the original iPhone would be broken down into effectively 9 pixels on this new resolution. I just had this conversation with my mom, who doesn't really understand tech that well, like 10 minutes ago but it seems to make sense right? If it doesn't make sense, I'd would like to hear the explanation why since I obviously haven't thought this who idea through and I'm sure I'm not as tech savy as others on this forum, which is why I come here lol.