Undocumented iPhone feature?

What do you think is soooo wrong with Charlie Sheen? See he’s with a hot chick in a red hot sports car.. what can I say he’s a totally cool (lucky) dude!! But wait a minute there’s something wrong with this clip.. have you seen it? If you noticed that Charlie is using an iPhone then you’re correct and he’s holding it upside-down which I think is not right. Or maybe Im wrong but Im not sure about this, maybe this is one of the iPhone features (undocumented) that when you’re holding it upside-down it automatically switch the speaker.. like what the screen does.
source {macman}

