Mobile communication has increasingly become a part of daily life. Tourism industry, as all other industries, has been affected by the advances in mobile communication. Because almost all defi nitions of tourism are based on travelling from one place to another for various purposes, the term 'mobile' is used as synonym for the words portable and moving. In this context, mobility is in the nature of tourism. Mobile communication, although currently not at the desired stage, will have a growing role in tourism. In today's world, airlines, travel agencies, tour operators and hospitality businesses develop mobile applications and new business processes that take advantage of mobile technologies. This chapter attempts to reveal the relationship between mobile communication and applications in tourism.