The document discusses mobile learning (M-learning) and mobile-assisted language learning (MALL). M-learning allows the learning process to be personalized, spontaneous, informal and ubiquitous as it removes the constraints of time and place. With MALL, students can learn a second language using mobile technology anywhere and anytime without needing to be in a classroom. While mobile learning has advantages like portability, connectivity and social interactivity, it also has disadvantages like small screens and limitations of data storage and multimedia on some mobile phones. The document also describes a language learning app for Android that uses games and social interaction to teach different languages at various levels.