Facebook released an app update for iPhone, iPad (Mini), and iPod Touch devices today. This update brings free VoIP calling between Facebook users in the U.S. and Canada. You can call a Facebook friend from within the app. Here is the official description of all the new features included in this update: New button design makes it easy to like, comment and share posts in News feed. Improved buttons to like, comment, and share posts Share button to re-post stories from your News Feed now available in all languages Call friends for free right from Facebook (US and Canada) *Free Continue Reading →