We've seen way, way too many leaks of the next iPhone's design, but none of them have shown a truly functional device -- until today, apparently. With the help of cnBeta, Chinese leaker zzray has posted photos and video that reportedly show off a fully functional 4.7-inch iPhone. On the surface, it's exactly what you'd expect: it's the iPhone 5s on a grander scale, with more real estate for icons and other content.