Well that was quick. Fring has swooped in and shut down iPhone 4 video calling on 3G with Fring.

But before you cry foul, waving your arms in the air at Apple for yanking the app or mobile operators for restricting the service, it's actually...

VoIP is great isn't it? All those free calls around the world to your mates and family without the hefty bills to match? Shame you can't get it on your mobile then isn't it.

Well, now it appears you can. Although still in beta fring is...