Worth it for the illustration alone, but interesting analysis: "It didn't arrive when the iPhone 4 went on sale in mid-2010 because Apple couldn't get its hardware working properly--the white coloring, combined with the iPhone 4's unusual glass frame meant the phone's proximity sensor and camera unit didn't function as they needed to. In other words, it was a big technological failure, from one of the world's biggest companies on one of its market-defining products."

UV protection for people who see it?