Apple has put up a page indicating the number of Apps downloaded from the App Store. The numbers in the counter is constantly increasing and once it hits the 10 billion mark, BINGO!
The person who downloads the tenth billion App from the Store will be awarded a $10,000 iTunes Gift Card. Just download any App (even free) from the App Store and if you are lucky and download the 10th billion App, you’d get the card. Even if you don’t download, you can enter to get the $10,000 iTunes Gift Card by simply filling this form. Earlier this year, Apple put up a similar counter to indicate 10 billion song downloads from iTunes.