With WWDC approaching, Rafael Justino releases his concept video for  iOS 7. His vision adds much-needed functionality to some of the basic apps of iOS. Although, Justino’s lock screen customizations may be the most interesting concept. He’s hoping Apple will give users the ability to completely customize every element of the lock screen, right down to the color of the “Slide to Unlock” arrow, and the opacity of UI. WWDC will be held between June 10-14 in San Francisco.

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