The Nintendo Account, which is a new system that will facilitate a cross-platform connection between home and handheld consoles, PC’s, and mobile devices that will allow data sharing from those devices through a cloud-based data service has now gone live in Japan. Online registration is now available and users of the service will be able to view purchase history, easily purchase eShop titles, and is currently offering a special promotion for signing up. According to an Australian Nintendo reporter, Vooks…