"Virtual Cable™ is a unique display for a car navigation system. The driver sees the Virtual Cable™ image through the windshield. It appears as if suspended over the road, similar to a trolley cable. The image is in true 3D and appears to be a natural part of the landscape. The driver uses only peripheral vision to follow the Virtual Cable™."
This is very impressive. Read more about it and view the video clips at their website:
http://www.mvs.net/
