"Over the last year, the messages team has been working to make it easier to have one on one conversations with your friends. In November, we launched the new messages, which brings together your chats, texts, emails and messages all in one place", Philip Su said in his post in The Facebook Blog just today, July 7, 2011.
He is so excited to introduce video calling and other improvements to chat.
o answer from your friend, you can also leave a video message.
To learn more about video calling, visit the Help Center.