Anyhow, for those of you who are wondering what Tango is, it is a cross platform voip app that works on iOS, Android, and now, WP7. You can chat with your friends over 3G/4G/Wifi for free!
It works best if you have a front facing camera but it works none the less. I have tried it with my friend on an iPhone 4 and aside from the video being a little laggy on 3G (understandable), it worked quite well.
Download it here!
• Free calls between Windows Phone, Android and iOS phones and tablets, and PCs • Save money with free international calls to other Tango members • Start a phone call with Tango and switch to a video call when you have something to show by tapping the camera icon • We automatically find the friends that already have Tango • No log in and password - create an account in less than five seconds • Invite your friends by Text and Email • Simple and easy to use
*UPDATE* - apparently there are Samsung and HTC versions of the Tango app, not sure what the differences are. I have the original Tango app from Tango and seems to work for me so if you have a gen 1 device like I have and the HTC/Samsung version doesn't work for you, just use the regular version