Bloomberg reported this morning that Amazon is set to add social gaming features to its hot-selling Kindle Fire by giving it a feature that Google currently does not make available on stock Android. Specifically, the company will make it easy for developers to add the social feature into its existing games—presumably with a simple SDK. App users will then be able to interact with leaderboards and an achievement system, adding a bit to the gaming experience on the Fire platform. Apple makes a similar feature available on iOS and OS X with its Game Center platform. There are currently 43,000 apps available on the Amazon Appstore, which could certainly benefit from some added social features.