When I was on the phone with customer support, one of the reps made it pretty clear that "Apple engineers are aware of the problem, and are still working towards a fix." I was given the option of totally returning my computer, or replacing it for a (hopefully) satisfactory one. The first option certainly sounded appealing, but I sold my primary 17" laptop for this one, and am starting school in a few weeks.
Normally I wouldn't be so picky over screen warmness and display burn-in, but the screen is the major selling point of this particular model. Nothing else, minus its thinness, is really groundbreaking. If there's only one thing it should be doing right, it's display things. I justified the price of replacing my old laptop, because I wanted to downsize to a 15" to carry between classes, and because it will display at 1920x1200 equivalent (as the 17" would). That said, I feel like the LG's contrast and sharpness had nothing on my early 2011 MBP's screen (I don't know the manufacturer, but at this point, I assume it was Samsung). Once I get a screen with a good unaltered white point, and without burn in, this thing will be the best laptop I could ask for. It's so much less cumbersome than my 17" was.
Another question: Anybody notice strange coloring on their rMBP's rear glowing Apple logo? All my previous laptops had a pure white light. This rMBP has an ever-so-slight pinkish/purple hue. It doesn't really bother me, but I'm curious if they used different lights to power it. It's not nearly as purple as a hydrogen lamp, but it certainly gives off a unique color. If anything, I actually think that it makes the Apple look a little more futuristic--kinda like those slightly off-white halogen lamps and LED running lights in new luxury cars.