This prototype sail-wing is designed by Edouard Kessi and his friend Laurent de Kalbermattenusing.
How does this French invention could make sailboats simpler? Because it does not deform in the wind the way a normal sail does, it offers an huge aerodynamic advantage, and leaves the captain with only navigation to focus on. It has a telescoping mast that deploys along with the sail.
This example is just a prototype; the goal is to scale the design to be used on much larger ships. But what do you think about it?