The Teacher as Software Developer is the name of a program integrating technology instruction, curriculum, and field experiences in teacher preparation. In an introductory education course for all undergraduate education students, a required technology lab links to a one-day-a-week prepracticum. Preservice students produce a Web site or "software" for their supervising teacher, who is their "client," and the supervising classroom teacher directs them to authentic curriculum objectives. Preservice teachers learn about software while learning about teaching, lesson planning, curriculum, and technology. Supervising classroom teachers gain an opportunity to experience designing and using software with their own students and curriculum and access to the preservice student produced Web sites after the student has completed the lab. Evidence of the program's success comes from student survey data and student reflections. Despite the program's productivity, it remains an island of instructional technology.