OK- if Apple were going to being out an iPhone with an approximately 4" display- say that is the minimum, and they were to maintain the DPI of the retina display as it is now and the same aspect ratio to allow for automatic scaling of all applications until developers put in new retina display graphics that were native to the resolution, what would the resolution be that seems like it could be a commercially-produced display? If you do the math with a 1:1.5 AR at 4" to the current DPI, you get about 1100 as the longer pixel dimension. But that doesn't seem right. Anyone have any thoughts on this? Is there any prototype display or any resolution that seems like it would match Apple's need to maintain Aspect ratio and bring out a display around 4" with increased resolution to maintain the Retina display quality?