The document discusses how the Google Plugin for Eclipse version 2.4 makes it easy for developers to build Android applications that connect to Google App Engine. It notes that App Engine provides cost-effective scalability, security through Google accounts, and ease of use. The plugin allows local debugging of Android apps, integrated deployment to App Engine, and access to Google APIs from a GWT-based web or Android interface. It announces new support in version 2.4 for building Android apps that seamlessly integrate App Engine and Cloud Messaging for push notifications.