Facebook Mobile for BlackBerry (version 1.7) provides the following feature enhancements:

• News Feed Support – The ability to set the News Feed as the landing page
• News Feed Filters – The ability to toggle between ‘News Feed, Status Updates, Photos & Links’
• Caching Improvements – The application uses the device memory more efficiently.
• Feed Pre-fetching – The user will not be required to wait while their Facebook Feeds are updated
• View Profile Menu Option – Clients may easily view their own profile by selecting ‘View my Profile’ from the menu. “

you can download it from http://m.facebook.com or http://blackberry.com/facebook from your bb device