O2 have released an amazing new application which enables you to make international calls for the same price as UK landline calls.

The free application, known as O2 Social App, works in combination with Facebook to enable cheap International Calls. After downloading the free application you can initiate a call through Facebook Chat, which will only cost the same as a UK landline call.

Brilliantly, the other person doesn't even need to have the application installed making this an even better proposition.

The closest alternative to O2 Social App is probably Skype, but that is a lot more hassle to setup compared to O2's solution. Those making occasional international calls could do much worse than use O2 Social App and 3G can see it proving quite sucessful.

You can download O2 Social App from the App Store by clicking here or the Android Market by clicking here.