The document discusses the history and current state of mobile learning (m-learning) and the use of personal digital assistants (PDAs) in educational settings. It outlines the pros and cons of m-learning such as its portability and ability to engage learners versus limitations like small screens. Examples of how PDAs can be used in the classroom are provided, and resources on the topic are listed. The presentation aims to provide an overview of m-learning and discuss what has been learned so far regarding this approach.