You'll eventually get better than 1920x1080 on your Retina MBP, because apps will adapt to the HiDPI APIs, and then you can scale all the critical parts (text v

You'll eventually get better than 1920x1080 on your Retina MBP, because apps will adapt to the HiDPI APIs, and then you can scale all the critical parts (text views, graphics views, etc.) to be as tiny as you like and still get high-quality, and the same settings will work on the old non-Retina display but just look worse. I.e., the approach they've taken is fully scaleable from current resolutions to high resolutions, but it'll take some cooperation from third-party software. In the end, you'll be better off.