While we're still umming and ahhing about digital radio here in Australia, it's well established in the UK. In fact, they are just about to roll out what's described as a "killer application" that will allow listeners to download songs they like as soon as they hear them on air. Now that's got to be good news for the radio and music industries - who will both make money from the paid-for service. However, at the rate we're taking up technology now it'll be years before we have it here. Details here (requires registration).