Facebook today updated its native Android mobile app. You can grab version 1.9.7 now from the Google Play store.
Here is the official change-log for Facebook for Android version 1.9.7:Facebook for Android 1.9.7 requires Android 2.2 and up. A front-facing camera makes it easier to take photos. New messaging features let you switch between conversations, include friends of friends, share bigger photos, and see who's available. Various bug fixes. Made a security improvement. Faster app login and navigation.