BlackBerry today made an updated version of its BBM messaging product available to Android and iOS devices. The update is significant, and adds hallmark features such as BBM Voice and BBM Channels. BBM Voice lets users make free calls to other BBM users via Wi-Fi or cellular data networks. BBM Channels is a social network of sorts, and lets users subscribe to the channels of those who they find interesting. The update also makes it easier to share photos, videos, and documents; adds support for Dropbox for file sharing; and adds a wide array of new emoticons. BBM 2.0 for Android and iOS is free to download from the Google Play Store and iTunes App Store, respectively. BlackBerry is also making a small update available to the BlackBerry version of BBM, which adds Dropbox integration. It is free to download from blackBerry World.