Similar to telephony in the 19th century, mobile telephony was first adopted by business people for business-oriented activities. Small and medium-sized entrepreneurs are one of the major user groups. Their use habits have thus contributed to the development of the mobile phone which in turn has transformed the business practice of its users. Despite its importance, there have been limited studies that examined individual business users of mobile phones; even fewer studies exploring the social roles of mobile phones for Chinese entrepreneurship, although Chinese businessmen were the first and important groups in China's mobile population of 539 million, which is the largest in the world.