Anybody else dowloaded the new app called "Viber"??  Its an VOIP  app which allows free phone calls between Iphones with the app installed. Too good to be true….thats what I thought….but it really works very well  and the sound quality is great. My wife and me are on the Vodafone  Smart1 plan which only gives 30mins of call time per month. So now we can call each other any time we want and not worry about call minutes being used up. It does use data from your plan but as far as I can tell its not very much and with Vodafones present 3gb cap its not a problem. I think its a great app.