Apple announced that nearly a billion applications for the iPhone and the iPod Touch have been downloaded since Apple's App Store went live in early July 2008. The company even introduced a counter to track the number of downloads. It was just in late January that Apple celebrated [1] the download of 500 million applications. Some of the most popular applications include Facebook, Google Earth and the game Crash Bandicoot. Article [2], Slideshow of the top free apps [3], Slideshow of the top paid apps [4].