Those of us in North America, Europe, many parts of Central and South America, and eastern Asia live in a digital world, and there has been ongoing debate about technology and learning. In other parts of the world, such as the African continent and much of central and south central Asia, there is evidence of a digital invasion, but it is still not complete. However, one part of twenty-first-century technology that has infiltrated nearly every corner of the world is the cell phone. After discussing the use of cell phones as an efficient and low-cost tool in business and educational contexts, the article illustrates several cell phone activities that supplement and enhance English language learning in the classroom. The article also discusses obstacles to using cell phones in class.