1. The document discusses using mobile devices, especially cell phones, for English language learning and teaching in China. It notes that cell phone usage is widespread in China. 2. It outlines some functions of cell phones that can be used for language learning, such as voice calls, text messaging, browsing, downloading, cameras, and games. 3. It describes some issues with current English teaching in China and sees potential benefits of using cell phones to enhance English learning, such as providing wireless networks, reducing texting costs, allowing online access to materials, and downloading content for review.