Write Facebook apps for the Android platform with the Facebook Android SDK…
You can incorporate Facebook functionality into your own applications. From the mobile perspective, the Facebook Platform supports APIs for mobile web applications, and mobile SDKs for native mobile applications for the iPhone, iPad, and Android platforms. In this article, explore the Facebook Platform APIs and the Facebook SDK for Android, the SDK released by the Facebook mobile team.
See my article Introduction to Facebook APIs (IBM developerWorks) which introduces the Facebook SDK for Android.