The emerging technology in mobile devices presents new business potential to Internet enterprises. These devices enable users to access the Internet at any time in any location. Based on the infrastructure of the existing e-commerce applications, these enterprises can extend their services to the vast population of mobile users by redesigning some of their business process. Taking the E-Ticket system as an example, this paper examines the requirements of m-commerce applications, and explores the benefits that mobility contributes by investigating how the electronic ticketing service can be extended to the mobile users.