I was sad to see the hack of Touch ID as it probably brings down the curtain on using it as a form of mobile banking. But if it were allied with an iWatch, i could see it being able to be used with mobile banking / payments / high security issues. I could see it working by allowing Touch ID as a secure password only when in the presence of that person's authenticated iWatch. So you have two parts to the security now, and it would only work when both pieces are in place. Would that work?