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This research deals with two aspects of mobile commerce (m-commerce); namely killer applications and critical success factors. After compiling significant information from the related literature, a Delphi panel was assembled by selecting a group of experts who has significant knowledge about m-commerce and wireless communications. The panel was requested to comment on a number of m-commerce issues and scenarios gleaned from the literature review, and members of the panel also were asked to indicate which issues were more important and which of the presented scenarios were more likely. Three separate rounds of the Delphi survey were carried out and the final results indicated that the short message service (SMS) and a killer portfolio were the two most likely killer applications of m-commerce. Additionally, four factors—convenience, ease of use, trust, and ubiquity—were identified as the most …