Good news if you're a fan of the instant messaging client Viber. Talmon Marco, the CEO of Viber and Viber Social Media Manager, has stated that yes, they are working on a BlackBerry 10 app that will have both messaging and voice at launch. The current app for legacy devices will be getting an upgrade to support voice as well, which is great news for those of you that aren't planning on getting a BlackBerry 10 device anytime soon.
Viber for BB10, as announced by Blackberry is in development. We currently do not have a timeframe, but it should take less than the time it took us to deliver Viber for the previous generation of BB devices. Viber for BB10 will support Voice on day one as well as all the other features found in Viber for Android and iOS. While discussing Blackberry, it should be noted that we are still on track to deliver voice for the current BB devices.
Also worth noting, the app will be seeing future updates including new stickers, languages, and more. If you're not familiar with Viber, it's a cross-platform messaging client currently available on BlackBerry, iPhone, Android, and coming soon to Windows as well. You can download the current version of Viber for BlackBerry OS 7 and older at the link below.
More information/download Viber for legacy BlackBerry devices