Facebook 1.5 for Android Brings Chat and Push Notifications

Facebook has updated its Android app to version 1.5, with two very important new features: chat, which also has a background mode, meaning you can receive messages while using other apps, and push notifications, which are only supported for devices running Android 2.2 or greater.
Although this makes the app far more complete and (finally) up to par with Facebook () for iPhone, Android () users still have a lot to be grumpy about, as the push notifications only refer to chat, not other events such as comments and likes.

Furthermore, since only 43.4% of users are running Android 2.2, it means that a lot of users out there will miss out on push notifications. For comparison, iPhone users have had push notifications since January, and the feature works on both iOS 3.0 and 4.0 devices.
The app is available for free in the Android marketplace.