Reading your ideas, I was thinking about number 2, and those demos of the Microsoft Surface awhile back, and I had this idea. What if insead of an "app" you had

Reading your ideas, I was thinking about number 2, and those demos of the Microsoft Surface awhile back, and I had this idea. What if insead of an "app" you had a web app where where resteraunts can upload photos/prices/descriptions of menu items, and get a QR code they can paste up in their resteraunt. Might be slighly less of an enterance barrier for customers.