For those of you who are sensitive to uniformity, have you noticed the following? (This is only the 6 Plus, and this thread is NOT about the whole screen being yellow [i.e. panel variance] ) The issue: The left side is warmer/yellower. The right side is cooler/bluer (portrait orientation). I noticed this on my iPhone 6 Plus, the store iPhone 6 Plus devices, and a few of my friends I've mentioned this to have noticed it as well. A good test is NOT a completely white screen because your eyes betray you (hah!). Just use this very forum thread as a test.. I suspect only those who are very sensitive will notice, but I've seen too many devices to believe it's a coincidence.