Here is Chat Facebook App version 1.0 for Blackberry 8820/ 8800 World Edition. Although the Facebook Chat app is easy to use, it is pretty basic. The user interface isn’t very attractive and chats can display in a way which cuts off the last few characters of each comment. There’s no support for choosing emoticons, either.
Settings in this mobile version of Facebook Chat are a bit thin on the ground, although there is the option to enable vibrate notifications, and to change the notification tone volume.
Download on here by scan this below QR code. 
How to scan are folow as:
· Open the BlackBerry App World app on your BB smartphone.
· Click the Menu key and select Scan a Barcode.
· Click Start Scanning. Point your Blackberry smartphone camera at the barcode image (above) and hold the camera steady for 3 seconds to scan it. BlackBerry App World will instantly find the app you’ve selected.
Alternative Download link : CHAT FOR FACEBOOK BB
download from Appworld : chat for fb Lite
Just a simple, intuitive, Facebook-inspired interface centered around the most important task – to let you chat with your Facebook friends. Fast, easy and simple.
no comment untill now