Facebook for BlackBerry smartphones v 1.5 has officially launched.

The application allows users to access and manage their Facebook contacts list and integrate it with their BlackBerry address book.  Callers from a user’s Facebook address book will appear with their profile picture as the caller ID and birthdays and events will also be integrated automatically into BlackBerry calendars.

Facebook for BlackBerry 1.5, is now available tin multiple languages including French, Italian German Spanish, Portuguese, Dutch, Polish, Russian, Czech, Traditional/Simplified Chinese, Japanese and Korean.

Facebook messages and status updates will also be integrated with your BlackBerry device, with conversations appearing as an IM thread in the application and appearing in your BlackBerry message list. Users will also be able to search Facebook contacts and information using the BlackBerry’s onboard search facility.

Visit mobile.blackberry.com from your BlackBerry Browser or www.blackberry.com/go/facebook from your desktop.