You can buy a burger through your phone.

http://www.cbsnews.com/news/wendys-joins-burger-king-in-rolling-out-mobile-payments/




Hell you thought your smart phone had no more things to learn.    How about full run of a Burger King or a Wendys?     You look at what is what and order off the phone.     All they need is a flying drone to come out to your home with the burgers.    I bet that's in the works.    Someday.