Facebook introduced hashtags this Wednesday, allowing people to tune into topics of interest. This allows you to add contest to a post or add it to a larger discussion.

This is better in some ways as this gives more about your friends chat rather than some random person whom u never met. We cant say whether it will hit or flop but this new feature may reduce the unique characteristics of twitter.

Let's see how much more can make facebook closure to people.
facebook promises to roll out some new features in coming weeks and months.