Currently, not much information is available about this new service. However, the Facebook official blog post and a video tour give us an idea about this new service. Read more about it at here. If you need an invite to Facebook Social Messaging/Email, go ahead and request at http://www.facebook.com/about/messages/ Note: As it is so popular, there are chances for lots of scams for the Facebook messaging invites. So, be careful about that!
