In the days after the retina 15 inch MacBook Pros were released discussion was ripe with speculation about the release of other models with retina displays. Of course, such speculation has followed the releases of other high resolution Apple devices, such as the iPads. When we learned that Apple, long ago, was acquiring the means to produce high resolution displays, it seemed as if a retina MacBook Air was on the horizon. Of course, to date, there appears to me little hopeful speculation that a retina MacBook Air will be released. After all, there is the fact, too, that the MacBook Airs are already 'higher resolution' (e.g., the pixels of a 15 inch Pro are squeezed into the Air's 13 inch screen). Rumor has it that a 13 inch retina Pro will be released--and if Apple has 13 inch retina displays, prima facie, there seems no reason, besides the fact that Airs are already 'higher resolution' and constitute a slightly different market than Pros, not to introduce retina. What is your take? Do you believe that hoping for a retina Air is a lost cause--a pipedream?--because these machines already have their "higher resolution" and they need to be differentiated from higher market/performance (but damned heavy!) Pros? Or do you believe it is a matter of months until Apple transplants the screens from the 13 inch Pro to the 13 inch Air?