Posted up recently regarding issues I've had connecting my iPad via an iConnect device. I came across this cool solution offered by [Only registered and activated users can see links. Click here to register]
It consists of a server program you run on your Mac or PC and a dedicated host app on the iOS device, both called Studiomux. You launch your IAA or Audiobus compatible app from that host software and you can use it like any old VST. You get 8 channels of audio plus one from your computer to the app.
It was a zero pain process, albeit not all apps are entirely compatible. Oh, and it's only $10.