The Novation Audiohub reportedly allows iOS to host up to 3 USB MIDI devices. I'm currently using an eDRUMin4 in standalone into iOS with a MIDI 5-pin and an older USB interface. My theory is, if I find another eDRUMin4, and get the Audiohub alongside it, then the eDRUM software in iOS will recogniz...

Any one these still available? I'm in the US.