Source of Photo leak: http://feldvolk.com/en/
I follow tech news, and most Apple news pretty closely. Doing this for the past few years, I can pretty easily tell the real from the fake. I think by now, enough parts have leaked from their respective Chinese factories that a full functioning unit can more or less be assembled..
This, ladies & gentlemen, is almost 100% what the iPhone 6 is going to look like. The actual units are going to be more polished / finished products and most likely in different colors, but this is a good enough idea of what to expect.
Click through to see more pictures and read more.