Wishing a friend or family member a happy birthday will never be the same again, after Facebook announced its new Birthday Cam feature. Built into the iOS Facebook app and said to be on its way to the Android platform soon, Birthday Cam allows users to record short video messages, wishing the recipient many happy returns while doing whatever it is people do on Facebook these days. Is Farmville still a thing? Messages wishing people a happy birthday have historically been some of the most posted items on Facebook, with more than 100 million birthday greetings sent in the month of January alone. With figures like that, adding a specific birthday greeting feature to the Facebook mobile apps makes plenty of sense.