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The penetration of high-end mobile devices equipped with GPS and enhanced with multimedia features together with decreasing mobile data prices have resulted in larger usage of mobile services. One of the application domains particularly well-suited for mobile services is tourism, not least since tourists can be assisted especially during the vacation itself. Currently, there is a proliferation of such mobile tourist guides, proposing an unmanageable number of diverse functionalities. To counteract this situation, the contribution of this paper is threefold. First, an evaluation framework is proposed, comprising both, a classification of mobile tourist services and a categorization of their delivery aspects in terms of several orthogonal dimensions. Second, on basis of this framework, four representative mobile tourist guides are evaluated, thereby demonstrating the frameworks' applicability. Third, several lessons learned are …