The Boy Genius came across AT&T screenshots that show the Apple iPhone will be available to the carrier's Go Phone prepaid users once it launches next month. Such news is contrary to everything we've heard about the iPhone so far (and granted, that isn't much), so we're a bit skeptical the screenshots are authentic. The iPhone's price with a plan is already sky-high at $499 for a 4GB version and $599 for an 8GB version, so it's not far-fetched to suggest that the cost of an iPhone sans any service rebates would be astronomical. And since prepaid plans are typically marketed toward cell phone users who don't want to pay a monthly fee, it's hard to imagine a Go Phone customer forking over that much cash. It just doesn't make much sense, but we suppose it could happen. Like everything with the iPhone, we'll have to wait and see.