Last May, Skype upgraded their iPhone app to allow users to make calls over 3G data connections. Today they have just announced a brand new version of the app that delivers high quality sound and support for multi-tasking. Now you can receive Skype calls while other apps are running, even when your phone is locked. Keep the conversations running while you switch to other tasks, for instance checking a train timetable or reading a message.

The app’s graphics have also been updated to make the most of the iPhone 4’s Retina display.

Like the sound of that? Then download the app HERE.

Skype helps you make more calls, for less. Suddenly, those iPhone 4 contracts don’t seem so expensive.