The iSnort Demo is a spoof ap for iPhones by Peter 'Magic' Johnston. that allows you to pretend to cut lines of coke on your phone.
According to Gizmodo, "This is funny because a) it's ultra-realistic and b) it is precisely one of the main uses of the iPhone in many clubs all around the world. And you gotta love their on-your-face sales pitch: 'Be the envy of in-crowd. Get ejected from nightclubs. Shock and amaze your so-called friends. Get oral sex from Z-list celebrities' "