Today Facebook has rolled out their new Facebook Messenger desktop client to a limited number of test users. It has been designed specifically for Windows 7, and once officially launched to the masses will provide you with access to your ticker feed, notifications and allow you to chat your friends.
The new Facebook Messenger desktop client has been developed to enable Facebook users to remain logged in and up to date with events within their feed, without the need to keep a browser window continuously open.
If trials of the new Windows 7 Facebook Messenger client go well, Facebook is expected to rollout Messenger clients for other operating systems.
Facebook has already launched stand alone Messenger applications for Blackberry, Android and iOS devices. That provides users with the ability to chat to friends on the move, and Facebook is now looking to expand its chat services through its desktop client.
Source: Tech Crunch : Facebook