Apple's brand-spanking-new OS X Yosemite seems to point to a future where iMacs are equipped with Retina displays. As MacRumors discovered via a French developer forum, the preview version of OS X Yosemite includes display settings that correlate to a 27" Retina display. Desktop users, prepare for a crystal clear display.
True, the rumor of a Retina iMac has been stirring around for awhile. But Yosemite includes files for scaling resolutions that line up with Retina's go-big-then-scale-down method (which MacRumors explains in greater detail).
It's likely that Apple's been working on a Retina iMac for awhile, but cramming that many pixels into a 27" screen can't be easy. There's speculation that Apple will roll out a slightly higher priced Retina iMac to go alongside a cut-price non-retina model (as it did with the MacBook Pro), but that's not confirmed yet. [MacRumors via TechBlock]