Digital technologies open new windows for ethnographic explorations of cultural experiences. In this paper, we examine text messaging among academically talented teenage girls of colour at three US urban high schools. Texting introduced a new communication modality into the girls' lives and created a space for new discourses mediating their participation in school. We draw on the concept of 'serious play' to reveal the paradoxical nature of the girls' texting. At each school, distinct text-messaged discourses emerged--with implications for ethnographic studies of discourse and young people's commitments to schooling.