When it comes to App Store gaming, Angry Birds by Rovio Mobile has been a smash hit with over 500 million copies sold since it was released a few years ago. And the newest title to the series, Angry Birds Space, has been equally as successful by topping over 10 million downloads of its own in less than three days of availability. Rovio Mobile held a promotion with Walmart and posted promotional videos online to promote hype for the new addition to the bird-slinging franchise. In almost expected fashion, Angry Birds Space quickly rose to the top spot on App Store charts in dozens of countries worldwide just hours after its release. Angry Birds Space is 99 cents in the App Store for iPhone and iPod touch.