Samsung took another step up the mobile tech ladder Thursday with the debut of the Galaxy S 4 smartphone at Radio City Music Hall in New York. With its 5-inch, 1920-by-1080-pixel display, it takes a step up from the 4.8-inch, 1280-by-720-pixel screen on the Galaxy S III. It has front and back cameras with a nifty feature: You can both at the same time. The person at the other end sees you and what you're looking at. Click the pic for more at Black Enterprise. (Photos © 2013, Robert S. Anthony)

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