Sporting Mouth is a new social gaming platform for sports fans that allows them to test their sporting judg-ment and make wagers with each other, using stakes other than money as currency. It breaks the constraints of traditional gambling and the regulatory minefields associated with it, enabling the platform to operate in any part of the world (even places where sports betting is illegal). To do this Sporting Mouth uses a reward system that replaces betting for money for competition stakes based on a wide range of lifestyle products and services and sponsors prizes. Social rather than contractual bonds enforce betting agreements.
You need to register and then you can add friends. A major problem is that you need to know your friend's username to add them, and there is no way to connect via facebook or twitter.
At the moment they are working with Nokia to bring prizes, to users.
The app is available for iOS and WP (no Android version, hmm just in time for the World Cup.
Here is their website
Download the app here
And add me, my username is the same - archimess. People interested, can share their usernames here.