The hardware has the ability to do this, but at the moment the firmware does not.
The USB connector is micro-ab, meaning it can connect both to A and B plugs. The hardware can auto-sense which it is, and configure the interface accordingly.
Writing the code for MIDI USB Host hasn't been top priority so far, though it would be awesome to have it. You could then connect any USB MIDI device to control more parameters on the OWL, even a keyboard to use it as a synth!