I'm sure many here have read about the display on Apple's new iPhone 4, which Apple refers to as the Retina display because it supposedly has smaller pixels than the human eye can distinguish from a standard reading distance. The resolution of the Retina display is an impressive 326 PPI.* I wonder how long will it be before we see ~300 PPI on standard computer displays? Imagine if that 1920 x 1200 24" display were a 6400 x 4000 24" display. It won't be long before posting an image in a forum will be like handing over a large print rather than a lower quality substitute. In fact, the dynamic range of an LCD far surpasses that of print, so in a certain respect, the print may become the lower quality substitute. *As a side note, while that resolution is a huge jump over that of the iPhone 3GS, it isn't a the revolutionary advance that Apple implies. ~250 ppi up to 287 PPI is run of the mill amongst Android phones. As one blogger recently put it, "The iPhone 4 duly launched yesterday with a series of presentations that will bring enthusiasm and nausea in equal measure".