Google Play Store version 5.2:

Google Play Store 5.2 if it brings hidden in his source tracks of the upcoming developments that Google could turn in coming weeks or in future updates. It seems that Google wants to renew the design to see details of an application supports Android Work for downloading authorized by the company, surveys and applications rewards .
About the rewards seem to be get discounts or acquire exclusive content after buying Google Play some content, such as when buying a movie can download the soundtrack or video game. The images of the rewards are:

Download | Google Play Store 5.2.12