Tango Video Call app for Windows Phone 7 Mango available for free Download!
Tango allows you to make free phone calls and free video calls over 3G, 4G, and Wi-Fi. Make calls to any other person who has Tango installed on their smartphone, tablet or PC. Start a Tango call with just voice, and easily move into a video call when you have something to share. It’s easy to use, it’s fun, and it works.