New iPhone Security Application

"http://www.buzzfeed.com/expresident/if-you-can-read-this"

I drive through the iPhone intersection
("http://i43.tinypic.com/n6v0o1.gif") about every day, and from what I
observe with the pedestrians crossing the road, nearly every one of
which is carrying an iPhone in the palm of their hand, this application
really would work.