A Billion

 A billion friggin downloads of Google Earth? Holy crap.

 "Google Earth software has been downloaded more than one billion times, and that stellar achievement was marked Wednesday with a website showcasing ways the interactive replica of the planet is used.
OneWorldManyStories.com features 40 real-world tales of how people around the globe have used Google Earth to follow dreams, defend nature, explore distant places, or learn about the planet."