The official Facebook app for Android is now updated to version 1.5. With it, all Android users can now use chat capabilities on the portal directly from the mobile application, and it will now also have push notifications for different events, such as receiving messages. The latter, however, works only with Android 2.2 or higher version. The good news is that the chat works when the application is in the background. The new version can now be downloaded for free from the Android Market.