Popular messaging service BlackBerry Messenger is reportedly set to launch on iOS this Saturday, September 21, reports CrackBerry. Specifically, an event for the service’s upcoming launch on Apple’s iOS and Google’s Android platform is apparently set to be held in Jakarta, Indonesia on September 20, with the service’s iOS app to appear in the App Store a day later at 12:01 AM in local time zones. BBM, which functions similarly to Apple's iMessage, was one of the first proprietary mobile messaging services and remains popular to this day with more than 60 million active monthly users. We've received quite a few emails that do suggest the date is correct and here's