The battle between messaging apps has been going on for a number of years now, but the same names keep floating to the top. WhatsApp and Facebook Messenger regularly feature in the top chat apps, and today Facebook announces that it has hit a key milestone -- one billion users every month. To celebrate, the social network has a little gift to say thanks... but don’t get too excited. Facebook says: "We're grateful for all the people who are sending billions of messages every day and we hope to send 1 billion thank yous in the form of a new… [Continue Reading]