Cost Of App Store Piracy Is $450m?

Reports are coming in that Apple and the App Store developers have lost a good $450 million to piracy, since the App Store has been opened in July 2008. The figure is apparently based on estimates regarding the proportion of downloads that are paid applications, the piracy rate for paid applications, and the proportion of pirated app users who would have paid for the applications had pirated versions not been available. Considering Apple takes 30% of sales each app, this would probably have cost Apple a cool $140million. However, it doesn’t seem that Apple is taking too much action against pirated software, maybe it doesn’t want to anger users?