> Overall, the idea of this design is not immediately intuitive and the association of sharing with this symbol is purely because users have learned what it mea

> Overall, the idea of this design is not immediately intuitive and the association of sharing with this symbol is purely because users have learned what it means over time. I honestly believe that this is the case for all the icons. As an Android user and developer, I wouldn't associate the box with the up arrow with a "share" action, much less the Windows 8 circle thing.