Audiobus: Use your music apps together.
What is Audiobus? — Audiobus is an award-winning music app for iPhone and iPad which lets you use your other music apps together. Chain effects on your favourite synth, run the output of apps or Audio Units into an app like GarageBand or Loopy, or select a different audio interface output for each app. Route MIDI between apps — drive a synth from a MIDI sequencer, or add an arpeggiator to your MIDI keyboard — or sync with your external MIDI gear. And control your entire setup from a MIDI controller.
Download on the App StoreAudiobus is the app that makes the rest of your setup better.
ICON design
I'm probably the only one, but it always seems to me like the app icon is cut off abruptly at the bottom.
Wouldn't it be much better if it was just an input or even just a flat edge instead of a chopped off cable?
I used to design icons myself, I'm very OCD about it and I know no one probably cares, or it is intended that way. But it's bothering me a lot whenever I see it 
and call me crazy, but it's not on my main produce app page because of it.. haha!
Anyway I adore what you guys do and these things don't matter, just though this was the right place to ask about it!
Is the Audiobus 2 icon the same btw?
Cheers!