doubleTwist, the company behind the popular multi-platform iTunes-compatible doubleTwist Media Player, today brought its new AirPlay Recorder app to the Mac, allowing iTunes users to capture and save streaming audio for offline use. First introduced for Android in January, AirPlay Recorder is designed to record audio, such as streaming songs from iTunes Radio, using AirPlay. After downloading and installing the app, it will appear as an AirPlay device within iTunes and will record audio after being selected from the AirPlay device list. The app will record any audio or ra