(Reuters) - Samsung's newest Galaxy S4 smartphone is just a revamped version of its top-selling S3 phone with a bigger screen and a few software gimmicks, reviewers said. "The Galaxy is still a beautiful, high-horsepower Android phone," New York Times' columnist David Pogue wrote. "But basically, it's an updated Galaxy S3. If this were Apple, who adds the letter S to denote a slightly upgraded model ("iPhone 4S," for example), Samsung might have called this phone the Galaxy S3S," he wrote. (http://r.reuters.com/cef67t) Samsung unveiled S4 in March in New York. It sports a 5-inch screen, 1. ...



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