The 15" Retina Display is actually more than Retina?
I just bought a 15" rMBP and I just learnt that there is an app called RDM out there which can "release the full potential" of the Retina display. (Some of you should know this as the app was released in 2012) What Apple recommends as "Retina" in the System Preferences is just text size which looks like 1440 x 900 on a 15" display, which Apple discreetly does not mention. Of course this 1440 x 900 gives you words with very smooth edges because of the potential high resolution of the display. So What is recommended as "Retina" in the System Preferences is not actually 2880 x 1800? With RDM you can have a resolution up to 3840x 2400. Considering this is a 16:10 display, that is equivalent to the 4K or UHD displays of the latest PC notebooks. So the Apple Retina displays are actually equivalent to UHD rather than just 2880 x 1800?
MacBook Pro with Retina display, OS X Mavericks (10.9.4)