After the last update for Facebook App which allowed us to play Facebook videos, Facebook iPhone App has been updated to v3.1.4. Facebook 3.1.4 for iPhone and iPod Touch is available as a free download from the App store. Facebook 3.1.4 adds iOS 4 Fast App Switching (Multitasking) and High Resolution graphics for the iPhone 4 Retina Display.

Facebook for iPhone and iPod Touch allows you to stay connected and share information with your friends. You can use your iPhone to start a conversation with Facebook Chat, check your friends’ latest photos and status updates, look up a phone number, or upload your own mobile photos to Facebook while on the go.

Facebook 3.1.4 iPhone App Changelog

• Updated for iOS 4: Fast App Switching, high-resolution icons
• Korean and Russian localizations
• Minor bug fixes

Facebook 3.1.4 supports only iPhone and iPod touch and iPad is still not supported

Download Facebook 3.1.4 for iPhone [iTunes Link]