You can now pre-register for Nintendo’s first official app, the MiiTomo social app that links you to friends on the Nintendo Network as well as allowing you to play small social games with your Mii characters.
Head over to the pre-registration site using your Nintendo Account. If you don’t have an account yet then you can also sign up for one via that link, using Facebook, Twitter or your Nintendo Network ID to register.
In addition, pre-registering will gain you some extra My Nintendo points, which can be used to purchase items on what promises to be a new version of the Club Nintendo programme. My Nintendo points can be redeemed for rewards of your choice within six months of the release of Miitomo.