The Google Container Engine Java Library allows developers to integrate the Google Container Engine API's functions into their Java applications. Developers can add the library to their Maven or Gradle projects using the code provided, or they can download the necessary jars as a zip file.
The non-profit built for "opening America's government" has created an app to show off its Congressional data, as well as its API (our Sunlight Labs API profile). You can't get this app on the web, though, as it's available exclusively for the Android phone platform.
Google has taken a renewed interested in user privacy and safety this year. It recently outlined a number of changes necessary for developers. Now, Google is moving further along this path with a focus on protecting kids from certain types of apps and in-app content in the Play Store.