Facebook for BlackBerry 1.9 is in open beta and available to all in Blackberry Beta Zone.  Facebook for BlackBerry 1.9 has several enhancements over its 1.8 predecessor including:

• Dedicated Inbox – a dedicated inbox just for your messages.
• Synced messages, so deleted items on your handheld will delete on the web version too.
• Integration with BlackBerry Universal Search.
• More application search options, including pages and individual users.
• Updated navigation bar, friends list, and pages list.
• and more!

Facebook for BlackBerry 1.9 is in open beta, but, you can only pick it up if you register over in BlackBerry Beta Zone.