Facebook has released a beta version of Facebook SDK for Android. The Facebook SDK for Android broadens our support for mobile platforms, which also includes iPhone apps and mobile websites. You can begin integrating the following Facebook Platform features into your Android applications today:

• Strong authentication using OAuth 2.0
• Making requests to the new Graph API
• Publishing stories back to Facebook via Feed forms

The library is very simple. With only a few lines of Java, your application can become social. To get started, download the Facebook SDK for Android from GitHub