Well, we told you so. The fourth-generation iPhone prototype that leaked its way out into the world over the weekend has found its way to Gizmodo, and they've examined it exhaustively enough to prove that it's the real thing. Not only does it show up in iTunes, Xcode, and System Profiler, but it has different product identifiers than the 3G or 3GS, and it's packed with Apple-labeled components inside. Unfortunately, they couldn't get it to boot out of recovery mode, but a number of new features and changes are evident just by holding it. Obviously, it's thinner than the 3GS, with smaller internal components and a larger battery inside the metal frame. There's also a front-facing camera, a larger and better camera with a flash on the back, a higher-res display that's slightly smaller than the current models, a second mic for noise cancellation, and that new back, which Giz seems a bit confused about but we're fairly sure is glass or ceramic. It's also three grams heavier than a 3GS, with a 16 percent larger battery and the same new MicroSIM slot used in the iPad.
We're also told the phone was found running iPhone OS 4.0 but that it was remotely killed before Giz could actually see it, and that they can't get it to boot because it requires a bespoke build of the OS. We're assuming Apple's hot on the trail of this thing, so hit the source link while you can and check a couple more pics after the break.