Here is Chat Facebook App version 1.0 for Blackberry 6720/ 6230 World Edition. Download on here by scan this below QR code. 
Pros
- Easy to use
- Displays contacts by group
- Vibration notifications
Cons
- Not very attractive
- Chat window can cut off the end of sentences depending on your screen size
How to scan are follow 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.
Scan the Documents to Go 1.0 “Microsoft “office software QR code below to download the app for Blackberry Bold 9790 Bellagio (onyx 3). Documents To Go was designed and developed with the BlackBerry user in mind. Everything from SureType® to contextual menus to BlackBerry shortcuts are supported for a familiar look and feel. Documents to Go is a suit of software which contains a word processor, spreadsheet, presentation (power point) and PDF viewer. : 
- Open the BlackBerry App World app on your BB smartphone.
- Click the Menu key and select Scan a Barcode.
- Click Start Scanning. Point your Bold 9790 Bellagio (onyx 3) Blackberry smartphone camera at the barcode image 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 : FREE DOCUMENTS TO GO FOR BLACKBERRY
Download from Blackberry APP World : Document to Go
alternative app : OpenOffice Document Reader
Using the upcoming Documents To Go software from DataViz, users will be able to create Office documents inside their BlackBerry Bold 9790 Bellagio (onyx 3) mobile phone.
Chat Facebook App for Blackberry Torch 9800 Taladega World Edition. Download on here by scan this below QR code. 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.
How to scan as follow 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
Additional information : The BlackBerry Torch (aka 9800 or Talladega) is a proprietary smartphone created by RIM that has a small slide-out QWERTY keyboard. It runs on BlackBerry OS 6 and is an AT&T exclusive. The phone has a 3.2-inch screen, 624 MHz processor, 5 MP rear camera, and social network integration features
