As the use of the mobile technology grows increasingly ubiquitous among populations worldwide, it is essential that second language instructors, researchers and curriculum designers understand their full functional capacity before implementing mobile technologies into activities and assignments in second language classroom. This paper explores the range of potential for multimedia mobile technologies in developing L2 oral proficiency and focuses on synchronous communication in particular. The paper also addresses points to consider before implementing mobile technologies into L2 oral language instruction and makes recommendations for future research on the use of these technologies in developing oral, and other, language skills. Recognition of effective and appropriate uses for mobile technologies in synchronous CMC environments will help facilitate meaningful and effectual language learning and enable learning environments to transcend the physical boundaries of the classroom.