seems like the onenote revision history (undo, redo, and version tracking) could be hacked to accomplish something similar.
a video/audio scrubber control that lets you go back and forth.
also another interesting thing about OneNote is that it can record audio, and embed a time index of the audio into everything that is being written,drawn or typed into a notebook. Currently it highlights what was done at that time index of the audio. but it could be used to show the exact state of page at any given time in the recording.
The Audio recording feature has been in onenote since 2003 SP1.
a video/audio scrubber control that lets you go back and forth.
also another interesting thing about OneNote is that it can record audio, and embed a time index of the audio into everything that is being written,drawn or typed into a notebook. Currently it highlights what was done at that time index of the audio. but it could be used to show the exact state of page at any given time in the recording.
The Audio recording feature has been in onenote since 2003 SP1.