Apple launches a new the Billion App Countdown promotion with a chance to a win several prizes. It’s exciting to see apple to reach one billion apps downloaded worldwide. Best of all, you’ll automatically get the chance to win a fully loaded MacBook, $10,000 iTunes Gift Card, an iPod touch, and a Time Capsul. Just go to the iTunes Store  andbrowse the App Store, then download your apps until it reach reaches the one billion mark.