Nintendo has announced that Nintendo Video for the 3DS will launch (in Europe at least) on July 13, and will include content such as cartoons and documentaries.
Coming soon, we're promised, are movie trailers, classic concerts, and animations for children.
Nintendo Video is freely available as a download in the Nintendo eShop and provides access to new and exclusive videos in both 2D and 3D.
I don't think it'll be long before we hear a similar announcement from Nintendo of America on when the service launches there.