Facebook for Windows Phone

Facebook for Windows Phone v5 has been completely overhauled, with faster performance, a new user interface, improved navigation, support for multiple resolutions and tile sizes, and more.
Keeping up with friends is faster than ever.
• See what friends are up to
• Share updates, photos and videos
• Get notified when friends like and comment on your posts
• Chat and have group conversations
• Faster and more reliable notifications
• Toasts for Facebook chat
• Redesigned primary tile
• Redesigned secondary tiles for chat, events, groups, pages, and photo albums
• Messaging improvements
• Performance improvements
• Support for additional languages