Sure, "in-app purchases" becomes a bit of a dirty phrase when we're talking about games that abuse the privilege, but they're a critical element of any profitable app ecosystem, and today Google's making a bunch of IAP features easier and smoother for developers and, by extension, you. Here are some of the new improvements.
Easier Purchasing Implementation
Previously, if you bought an item in an app, the purchase was handled via an "asynchronous notification through a background service." This meant that the app would call out to Google to announce a purchase, but then have to talk to a separate service in order to find out how it went.