Y’know the horror that is Chatroullette? Surely you’ve seen your share of gonads by now. Fun, yeah? No? Well whatever, because you can’t stop this bum rush – the harrowing experience of Chatroulette is now available on the iPhone 4 as iChatr, an app with all the charm* of the site that spawned it. Utilizing the iPhone 4′s forward-facing camera, simply start the app, pop in your pretentious white headphones (for whatever reason, the speakers don’t work) and be greeted with the throbbing unmentionables face of a random stranger. Don’t like what you see? Swipe, and they’re gone, replaced with the…