1. A method for implementing a mobile broadband device service, comprising:obtaining, by a host in communication with a mobile broadband device, service information of the mobile broadband device by calling an application programming interface (API) of a Web server on the mobile broadband device;
calling, by the host, a reminder function of the host for implementing a reminder-type service when the service information is reminder-type service information including a new reminder;
executing the reminder function of the host by calling an operating system (OS) API of the host; and
displaying the new reminder in the reminder-type service information on the host.