Earlier this week, ProgrammableWeb reported that Amazon has released an In-App Purchasing API for applications and games developed for Mac and PC platforms. A Kindle Fire In-App Purchasing API has been available in the Amazon Mobile App SDK since early last year. Amazon has now announced that another tool will be made available for developers to monetize games and applications; Amazon Coins, a new virtual currency for Kindle Fire that will be launched in the U.S. this May.
