The Legend Of Zelda: The Skyward Sword.

[DioShiba]

And for another matter...
If this is early development, why does Link have the Master Sword? I don't know much about game development, but it would make sense to me to start from the beginning..
So.. If it's the beginning, why does he have the Master Sword??

It's only for promotional purposes.

I believe they have done the same thing with past zelda games.