This is the max! Not sure if I would get one, but you have to check it out. First wireless midi controller for acoustic guitar.
They have demo tracks up, looks crowd sourced.
https://www.youtube.com/watch?v=eJFfnTkyj-g
Pretty amazing stuff.
http://acpad.com/
You would have to be a really seasoned fingerstylist to get the most out of this....but its a whole new ball game.