Apple has today begun a promotion to celebrate the future milestone of one billion Apple Store downloads. The promotion offers a prize worth over $13,000.
One Billion App Store download countdown

As of today, nearly one billion apps have been downloaded around the globe. So we just want to say thanks – a billion. Download an app and you’ll automatically get the chance to win a $10,000 iTunes Gift Card, an iPod touch, a Time Capsule, and a MacBook Pro. Just go to the iTunes Store, browse the App Store, and download your best app yet.

Apple offered a similar promotion when nearing one billion iTunes Store song downloads.