I did some reading/testing with the four units that turn on, because I need to send some back tomorrow. All four units have varying degrees of color blotches. The second unit I received that had a flower shaped spot under the screen, developed colored blotches yesterday. Today, they are worse. Out of the two I received today, the 3G is the worst, mostly blue-green, with a pinkish hue that spans horizontally across the top fifth of the screen, framed by the blue-green. There is a fainter pink band close to the bottom.
Most of the other ones have a pink right hand corner, though, and blue rest of the top. Is that how yours are, or is this coincidence?