If you are a user of devices with OS 5.0 and have been waiting to get your hands on Facebook chat for BlackBerry the update to the official app is now available. You can download the application at this LINK. Note that if you don’t have a Beta Zone account you need to create one. The new v 184.108.40.206 is available for both 6.0 devices and 5.0.
From the beta zone release notes
Bug fixes for Facebook 220.127.116.11 include:
Instances where some users would lose their cursor while scrolling the News Feed.
Facebook for BlackBerry 2.0 includes the following new features: