BlackBerry and Windows Phone 7 users can also now enjoy free messaging and voice calling application Viber (Beta version) on their smartphones. The free messaging and voice calling application is introduced here on Tuesday for BBM and Windows Phone. Previously, only iPhone and Android phone users can use Viber.

Viber’s latest beta version for BlackBery and Windows Phone 7 doesn’t support voice calls however you may send texts including sending photos, messages and exchanging location information etc.

Viber has 69 million global users who use to send over 1 billion mesages per month via Viber. BlackBerry users can avail the service from BlackBerry App World while Windows Phone 7 users can download the Viber from Windows Phone Marketplace.