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.
Anyone use the M-audio Air Hub?
Anyone use the M-audio Air Hub with an iPad?
Is it class compliant? It doesn’t mention whether it is or not on the M-Audio web site?
They only show it being used with a laptop, not an iPad.
Also, does it provide power to the USB devices? I’d like to connect a couple of controller keyboards using the hub feature and again, the website doesn’t mention if the USB ports on the hub are powered. Given that they specify a 3A power input, I would have thought they were, but would like to know for sure 
Thanks,
Tim