Holding my iPad 4 up right next to my iPad 3 (which I plan on selling), I notice the screens have a very slightly different hue. Not yellowing. And it's not like either screen is not right. It seems the iPad 3 has a tiny bit more blue hue to the screen. In comparison it seems the iPad 4 has a bit more ... red? Hard to describe. In the setup screen the gray looks more gray on the iPad 4. But obviously I'm used to the iPad 3 as I've been using it for the past 6 months or so. The iPad 4 doesn't look wrong. I can only tell the difference when I put them side by side. Anyone else notice this? Did apple officially tweak the colors/hues on the iPad 4?