1. False. Adding social features to an application can enhance the experience for users, but this is a design decision that requires thought and planning. Some types of applications benefit greatly from these features, while others may not. Add social features to an application only when doing so provides a clear benefit to both users and the developer.

2. B. Players can add friends in the Been There, Done That! application by inputting their email addresses. The application server tries to match each email address entered to an existing player. If the player exists, then a friend relationship is established.

3. False. You can use the networking features of the Android SDK to access the developer APIs provided by third-party social networking sites such as Facebook, Twitter, and MySpace.

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