The group of the University of South Australia works on outdoor augmented reality and necessary input devices and offers summaries of their projects. http://acrc.unisa.edu.au/groups/wearable/
The group focusing mainly on mobility and UI offers a Sourceforge-based software repository, an overview of projects and a extensive annotated link list. http://www.wearlab.de/index_en.xhtml
The project at Columbia University informs on application scenarios (e.g. campus information system, journalist's workbench) as well as the system architecture. http://www.cs.columbia.edu/graphics/projects/mars