This study examined the survey responses of 628 high school students in a large urban school district to determine their perceptions of mobile phone use in the classroom. Findings indicated that the majority of students (90.7%) were using a variety of mobile phone features for school-related work. Student support for instructional uses of phones, however, was not universal. Only 73.8% of the students supported integrating mobile phones into the classroom instruction, while 70.6% believed that mobile phones supported learning. Students had serious concerns about the disruptions caused by using mobile phones in the classroom and by inappropriate usage.