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the viber, Skype's current competitor, was finally released for Windows Phone e BlackBerry. Although it's still the version Beta, s can send messages, photos e share your location with other s. The ability to make calls via 3G or Wi-Fi will arrive as soon as the full version is ready and available for both OSes. It remains to be seen if the app will run in the background as it does on Android and iOS, a feature that Skype for Windows Phone does not do.
Link to Windows Phone and BlackBerry, for free!
