Only reason MAC was impervious to virus' is that NO ONE CARED ABOUT MAC USERS! If more people used MAC's and there was something to get out of it, such as annoying a small portion of society, then there would be more virus'. Iphone is just that, an opportunity for a hacker to create a nusance for the thousands of believers out there who think they feel they received their Iphone from God himself (as well as load up on their personal information and do all the other good stuff they aim at PC users).