It took forever to launch — and some of the people who downloaded still can’t even use it — but BlackBerry’s BBM for Android and BBM for iPhone apps are finally here. What’s more, the new app is shockingly popular. BlackBerry fiiiiinally released its highly anticipated BBM cross-platform messaging app for Android and the iPhone on Monday and in less than 8 hours, the company announced on Twitter that the app had been activated for more than 5 million users. When BlackBerry first released the new app, it implemented a queue system that allowed users to download and install BBM, but they still couldn’t use it. Instead, they would have to wait in a queue for BlackBerry to enable their accounts. More impressive than those activation numbers, perhaps, is the fact that the BBM for iPhone app rocketed to No.1 on Apple’s top free iOS apps chart in the United States less than 12 hours after the app was released.