Mobile learning aims to utilise communication devices such as mobile devices and wireless connection in combination with e-learning systems, allowing learners to experience convenient, instant and suitable learning at unrestricted time and place. Participants were 125 Taiwanese senior high school students, whose continuance intention was examined after learning English via PDAs (personal digital assistants). The study, using the one-group post-test design, adopted the Technology Acceptance Model and incorporated factors such as curiosity and perceived convenience. The results indicated that (1) curiosity had a positive effect on continuance intention; (2) perceived convenience had a positive effect on perceived usefulness and continuance intention.