A company called AVACore has the rights, and they charge a hand and a leg for it (~$2000, and apparently only sell to select groups). I looked into making one myself based on the published papers. It doesn't seem too hard but probably just a bit outside of my proficiencies.
Edit: I just discovered a DIY link to it, so looks like others had the same idea. Now that the trail has been blazed maybe I'll look into it again. http://www.instructables.com/id/CoreControl-DIY/