Spatial Annotation Device
unmediated points out a “postcard sized” portable, embedded Linux device for spatial annotation called Node Explorer:
Location aware computers and the content and services that run on these devices, will change the way that society experiences the real world. Node is a world leader in developing both the technology and the content production methodology required.
Node provides services and products that take the visitor experience of a building, national park or city further and deeper than ever before.
See also this earlier post on hypersurfaces.

