Remember that alleged SMS-based security hole on the iPhone allowing evil-doers to execute arbitrary code and do all sorts of nasty crap like create an army of mobile zombies ready and willing to execute a DoS attack? The guy who found it, security expert Charlie Miller, said that he'd reveal the details of it at Black Hat -- and Black Hat's this week. Sure enough, Miller and his cohorts plan to unleash details of the hack today, and while they claim they informed Apple of the problem over a month ago, Cupertino's yet to make a move. We'd stop short of suggesting iPhone owners all turn off their handsets and take themselves firmly off the