According to BlackBerryOS.com, the beta version of BlackBerry Messenger (BBM) has started rolling out in the Beta Zone for Android and iOS devices. The Beta Zone, which is similar to Apple's Developer Center, started sending out the invites to select registered users today, with more expected to follow in the coming days and weeks. BlackBerryOS.com has also leaked several screenshots of the Android version of the app, but screenshots of the iOS version do not yet appear to be available. The beta will require iOS 6.0 or later, according to Vivek Bhardwaj, the head of the BlackBerry Software Portfolio who