Google releases new Gmail API to give finer grained control and greater speed, potentially exploding the number of use cases. More on the implications of Netflix closing its API. Plus: check in to your hotel room with your phone, and Android offers a new camera API.
The previous parts of this series helped you become familiar with various kinds of push technologies. Sometimes you will want to build your own push API from scratch. Other times that isn't the case and this article helps familiarize you with some of the turnkey push API infrastructure providers.