Evidently, the rising popularity of Google + Hangouts — a video chat system that allows users to interact with many people at once, via a computer screen — is giving Facebook a run for its money. That was certainly the intent, anyway. But yesterday Zuckerberg upped the ante by announcing a new partnership with Skype, which would allow users to video-kick-it with friends without ever leaving the social network. Called Facetime, Facebook video chat is available as a mobile application — meaning you can purchase it at the Mac App Store for .99. The price tag distinguishes it from Skype, which is free, but unlike Skype, Facetime offers seamless transmission. Technology buffs applaud Google + Hangouts for having a similarly user-friendly system, because it's integrated with the browser.