Blackberry Messenger is now in the phase that Instagram was for a long while, public beta. This is where it is available to all Windows Phone 8 and above users (yes though officially cited as a WP 8.1 thing, there are very many cases of it working just fine before the update to 8.1). Early this month it was in private beta and there were invites sent out to a few select users who bothered to register on time to help with the testing. Now everyone can join in the party.
The public beta of the app is version 184.108.40.206 and brings with it key BBM features found in the app’s Android, iOS and Blackberry equivalents like BBM Group chats though several . This being Windows Phone, something had to be done about that Start Screen. Yes, you can as well pin individual chats to your Start Screen for quick access. The app lacks Channels though and like Blackberry did with the Android app, this is likely to be added later on. BBM Voice, location sharing via Glympse and stickers are some of the other key BBM features missing in action but like Channels, we can expect to see these added in coming days as well.
You can get BBM directly from the Windows Phone Store.