Agency FCB in Brazil came up with this amazing project for Brazilian airline Gol, and specifically for their loyalty program, Smiles. In collaboration with well-known Brazilian author Marcelo Rubens Paiva, they came up with an e-book about a forty-something couple who set off on a trip to where they spent their honeymoon years earlier. The twist? The book’s plot changes based on GPS information provided by the e-book and using technology developed by FCB especially for this project, so the protagonists’ adventure takes place in the same city where the reader is spending their trip, whether that be Paris, Rome, Buenos Aires, New York, or Lisbon. Pretty clever, if you ask us.