Update your Facebook for iOS and see an amazing redesign of the interface. New font and flat theme. Plus, it features an all new chat which gives users the ability to send giant emoji images or Stickers, as Fabeook calls ’em.
Check out the screencapture from my iPhone 4S. You will see on the video that while you are browsing through your Facebook Timeline or News Feed, you can still see chat messages from your friends via the Chat Heads. Message previews and notifications pops out of the icon each time a new chat is received.