Hand gesture interface for Google Earth
Atlas Gloves is a "DIY hand gesture interface for Google Earth":
Atlas Gloves is a DIY physical interface for controlling 3D mapping applications like Google Earth. The user interface is a pair of illuminating gloves that can be used to track intuitive hand gestures like grabbing, pulling, reaching and rotating. The Open Source Atlas Gloves application can be downloaded here and operated from home using a webcam and two self-made illuminating gloves (or flashlights).
The user stands in front of a large scale projection of the earth with a special set of illuminating gloves on their hands. By gently squeezing each glove, an LED turns on, which is translated by the computer into navigational commands. The user is then free to fly above the world, zooming in and out, tilting, rotating at their leisure.