Just two weeks after a hidden iPad-native version of its app was uncovered in code for the recently-updated Facebook iPhone app, researchers have uncovered a buried and unfinished video-calling component in the company's new Facebook Messenger chatting application, according to a report from 9to5Mac. The hidden code works on both Android and iOS versions of the app and will likely tie in with the company's Skype tie-ins to give the app future video calling ability between Facebook users.