Official Facebook Messenger application's has been available for mobile platforms like iOS and Android since quite some time now, and Facebook soon plans to penetrate your desktops with their native application for Windows OS.
While not YET officially announced the "Facebook Chat"/"Facebook Messenger" for Windows can now be grabbed from Facebook servers, the private installation file URL which was not supposed to go public is now leaked and can be downloaded and installed by anybody directly from Facebook. Direct download links and more screen-captures after the jump.