Text messaging has emerged as a potentially useful tool to help smokers quit. This paper evaluates smokers' preferences for the Quittext program, which examines the feasibility and acceptability of delivering tailored smoking cessation advice via mobile phone text messaging. Thirty smokers completed a web-based smoking behavior questionnaire and received 6 weeks of tailored text messages. Feedback was obtained via questionnaires and semistructured interviews. Smokers reported a preference for positive support, tailoring message content, and the ability to interact with the system. Delivering quitting advice by text message was considered feasible and acceptable. This research contributes to the literature; however, further intervention evaluation is warranted, with larger controlled studies needed to fully assess program feasibility and its effect on quit rates.