Facebook Messenger is a standalone app developed by Facebook to send messages to your friends around the world. The update brings the app to version 1.5 and lets you see who's online and who's mobile and see when the other person is typing. Other features include:
- A faster way to compose new messages to the people you message most.
- Various performance improvements.
- Support for 12 additional languages.
- Support for iOS 5.
Facebook Messenger 1.5 is available on iPhone, Android and Blackberry.
I wonder why Facebook made the Messenger a standalone app?