Human learners explore the world, they wonder, they get curios, they ignore, they get excited and ... sometimes bored. In the talk I will first define some key characteristics of mobile seamless learning support. Making use of sensor technology, ambient displays and augmented reality the current understanding of mobile learning will be broadened towards a vision of embedded and ubiquitous learning support with technology. Then the instructional design principles will be illustrated with some examples on the use of sensor technologies, ambient displays and their linkage in mobile seamless learning support.