Handheld and mobile devices are a fast-growing market. Also, the devices combine various separate multimedia and networking functions: i.e. telephone, photo and video recording, playing music, PDA-services, uploading blogs, mobile tracking services. They open up a mixed reality by defining new representations of the world that extend the real life arena. Hence, physical reality and virtual life are getting more and more intertwined. Mobile media for learning cover two fields of application: 1) the ubiquitous and cross media access to learning resources on the one hand, and 2) the contextualisation and personalisation of learning media on the other hand using context parameters as location, time, task, environment, or user information to adapt media for best learning support of the individual. Mobile media strongly support the intertwining of learning with daily life and work, and thus enable new opportunities for non-formal and informal learning, e.g. workplace learning.