Regarding the latter, it has been confirmed that the smartphone app will offer connectivity with Animal Crossing games on "dedicated video game systems". That could mean Animal Crossing: New Leaf, Animal Crossing: Happy Home Designer and Animal Crossing: amiibo Festival, or it could hint at a future Animal Crossing game for NX.
Whatever it means, Nintendo is making it clear that this app will form a bridge between smartphones and its dedicated consoles:
We are currently developing a new application for smart devices based on the characters and world of Animal Crossing. As I mentioned before, the Animal Crossing series for dedicated video game systems is well-loved for its long-term playability, so we want to offer a connection between the smart device application and the world of Animal Crossing on dedicated video game systems. This will make it even more fun to play in both ways, while offering a new style of play for smart devices. We are developing this application to provide consumers with strong value suitable to smart devices while also generating synergy with our dedicated video game system business, as this is one of the goals of our smart device business.
Let us know what you think this will turn out to be by posting a comment below.