You can develop e learning software for mobile phones and PDA. For building this project you need one pc as a server and mobile as a client.E-learning comprises all forms of electronically supported learning and teaching. The information and communication systems, whether networked or not, serve as specific media to implement the learning process.
Great example of elearning success is story of Khan Academy which has more than 10 million visitors per day.
Related PDF :
Mobile Book Shelf : An e-text reader for java mobile phones.
A Tutor :ATutor is an Open Source Web-based Learning Management System (LMS), designed with accessibility and adaptability in mind. Author interoperable e-learning content, provides social networking, and adheres to standards.
Mobile Learning Engine :The Mobile Learning Engine is a learning application for mobile phones written in Java (J2ME). It enables you to use your phone at anytime and at anyplace for computer-aided, multimedia-based learning. It is a content independent engine.