Apple offers promo codes for iPhone Apps on iTunes

Apple is now offering developers the ability to offer free or promotional versions of their iPhone apps. The company has enabled up to 50 promotional codes for each application, enabling developers to offer free copies of the apps for review, testing, or promotional giveaways. Until now, companies had been forced to offer iTunes gift certificates or use ad-hoc (private) distribution methods to offer users free (but authenticated) versions of their software. According to report by MacRumors, the codes be used to download a full copy of the application for free -- but can only be used in the U.S. (thus far) -- via a "Redeem" link at the iTunes Store.