Due to display structure of iOS, if the mini kept the 4:3 ratio it likely was going to be 1024x768 or 2048x1536. Or lets say they pulled off 1536x1152 compromise (and break the pixel doubling history). I could see the displays not ready yet and being available in six months, but if that's not the reason, I think its less likely most other explanations changing so quickly, no? Where Apple pulls the necessary display, graphic processor and battery components together while not increasing weight, size or price or decreasing bat life or those Apple margins (something Google and Amazon aren't worrying about) between now and April. Sure hope to be wrong, but even Apple magic has its limits. Would love Retina on everything and sure we'll get there, but the MBA Retina hopes in the press over the last year haven't been realized either.