Researchers at Georgia Institute of Technology have been experimenting with using 3D Google Earth imagery to add live video to the scenery. Adding real events to computer generated scenes by merging video and other forms of visual media is a type of technology known as augmented reality. The researches are in the process of presenting a paper on their new work, but have released a video on YouTube showing some of the results. Adding moving traffic, football teams at play, and people walking in the Google Earth scenery is a pretty amazing thing to watch. In the video, they show how they take multiple views to generate moving 3D renderings which are merged with Google Earth 3D scenes. Check it out here:
This is still the results of academic research, but it demonstrates some possible future visualizations we are likely to see as Google Earth (and related technologies) progress.
via Anything GeoSpatial