This video, via thesoundtestroom, offers an unofficial ‘Beginners Guide To Audiobus’.
AudioBus is a tool and standard for routing audio between applications on IOS. For more info on AudioBus, see What Is Audiobus & How Will It Change Mobile Music Making?.
Probably not much news for die hard Synthtopia iOS users, but never less excellent tutorial for everyone else 😉
Good demo! Check out our written guide for understanding audiobus: http://en.audiofanzine.com/getting-started/editorial/articles/understanding-audiobus.html