California startup Tango agreement with Microsoft to launch video calls on a mobile platform Windows Phone 7.5 Mango. Since the deal was closed absorption Skype recently, Tango will be the first to bring video calls on WP-phones.   Tango, founded two years ago, has already prepared an application for a video conversation on iOS, Android and Windows. What is important, they are all cross-platform, that is, iPhone owners can communicate by video link with the owners of Android-communicator. Tango-application for ...