Just as you can circumvent music DRM by recording the audio, you can record video from your flybys in the free version of Google Earth with this nifty hack. Otherwise, you’d need the pro version.
Re yesterday’s stereoscopic images and the wish for a “live” version of them: If you can record Google Earth video from one path, you can record the video from two paths. If one path is translated slightly vis-a-vis the other, you’d have left and right video. Mesh them together in Final Cut Pro and voila — stereoscopic video.