For a particular set of phone geeks, the problem with owning a popular flagship device is that plenty of other people will end up with the exact same thing. After all, it’s a proven fact – your phone isn’t cool if everyone else has one too.That’s where carrier-exclusive color options come in, and both AT&T and Sprint have chosen today to spill the beans on their newest chromatically-tweaked handsets – AT&T’sred Galaxy S III and Sprint’s white EVO 4G LTE.