Facebook Instant Messenger (windows mobile)

Features:
* Facebook Chat
* Photo / Video Uploads directly from your device
* Integrated m.facebook.com browser
* Status Updates
* Chat Message Notifications
* Facebook New Notification indicator
* Unread Inbox Message Indicator
* AppToDate Support
* All Video Modes Friendly
* Touch Friendly
* No 3rd party registration is needed, this app connected directly to the Facebook website.

Installation: 
Download the mobile installer (.cab file) to your desktop. Sync with your mobile phone and copy the .cab installer to your phone. From your phone go to Programs -> File Explorer, navigate to the .cab file and select it. The Installer should do the rest.