Hark News is an iOS app that takes the links to articles you're reading and converts them into audio files you can play on the go. You can listen to the latest news or stories offline and while you're doing chores around the house instead of having to sit down and actually read them.
Audio Playr is a handy tool to play, arrange and export almost any file that contains audio. It can handle almost anything you throw at it, as long as the file contains audio in some form. Everything from odd audio formats to movie file containers and you can export everything back to AAC or Apple Lossless.