Given that phones have:
- high quality cameras to capture photos and video
- the ability to record a lat/long position, and a bearing & angle (via compass app/tilt/acceleratometers)
- the ability to send data and communicate with other devices/computers
- automatically geotag photos with a lat/long, direction, and angle OR
automatically geotag frames of a video with locations along a recorded along a path (also see RoboGEO software) - upload geotagged media to a server when you return to your home wifi connection, or any other wifi hotspot (@alanlupsha)
- server geocodes the images (with minimal effort now) and updates an internet mapping application view that can be shared individually as a single view (see Google's Street View @ the 2010 Olympic ski runs)