Ch4t-0n-Fac3B00k for BlackBerry® allows you to chat with all your Facebook friends using your BlackBerry® smartphone. Ch4t-0n-Fac3B00k has been modeled after the native Facebook interface, giving you a familiar look and feel for a great experience chatting with your friends.

OTA
(OS 4.7-6.0)
Link: http://bit.ly/dLWcvP