Today, Facebook rolled out an update to their platform which allows users to "@" reply to their friends, in a very similar fashion to that of Twitter.

Over the last year, Facebook has appeared to be trying to copy Twitter, the ridiculously fast growing social network service. Twitter allows users to post "status messages" that are 140 characters in length, and let others know what is on your mind, and Facebook is imitating this action more and more - mainly using the Twitter styled "stream".

Read more: http://www.neowin.net/news/main/09/09/14/facebook-becoming-more-and-more-like-twitter

i am already using that function i am used to it!!