Scott,
MIDI is not available for the Android OS. You need do nothing to get the Airturn Bluetooth PEdal working on an iPad other than to have the iPad "DISCOVER" it.
Simply turn on the bluetooth on the iPad, making discovery operate, turn on the airturn pedal, and the rest is automatic!!
The Airturn comes pre-configured to run automatically with iOS.
In fact if you like, I have an Airturn Pedal for sale. It is the older model, but retrofitted with the latest firmware chip. I bought a new one as I wanted the up/down pedal board that they developed for the newer models. The oen I would sell is 100% fully functional and is in rather good condition actually!
Anyway if you decide you want to go iPad and an Airturn let me know and I can do a good price for you..it is only "gathering dust" here
Dennis