Use case: When people shop for furniture online, they can't see the actual size and color. When they go to the store, they see the furniture, but don't have a direct idea of how it would look in their house.
Solution: An augmented reality application can download a 3D model of the product from an e-commerce portal, and enhance the "real" view of your mobile phone camera with a virtual image of the furniture. Users can then see if the product is too large or not in the right shape for their room, and continue to browse.