iRadio - Apple's long-rumoured music streaming service - could be launched at WWDC 2013, if reports of licensing deals signed over the weekend are to be believed.Related StoriesDon't expect new iPhone or iPad at WWDC, but look out for new Macs, iOS 7 and OS X 10.9Apple will sell a 'shedload' of iWatchesWhat to expect from Apple at WWDC 2013: iOS 7, OS X 10.9, new Macs, iPhone 6, iPad 5?