Facebook messenger for Non Facebook users.

The most popular Social Networking site Facebook has launched a new version of it's chat messenger which will allows non facebook users to register on facebook chat just by using their mobile numbers. This messenger is basically launched for Google android based smartphones. This app is launched in India, Indonesia ,  Australia, Venezuela and South Africa and is expected to reach other countries pretty soon.

This messenger allows you to sign up and login just by using your valid phone number. This messenger will let you get in touch of people who may be in your phonebook on the phone and not on the Facebook friend list.
There are some security concerns as well with this app as you will be using your name and Contact number with a third party app.

Source: http://www.thinkdigit.com/Apps/Facebook-Messenger-refresh-for-Android-First-Impressions_11636.html