online editing

I was thinking if a video editing software program could be connected through a network so that a prject could be made by people simeaultaneously. For instance, everyone could see a bunch of mouse cursors, but only in the time frame of the sequence they are viewing. Each would have control over their own viewer of clips and canvas but the canvas would change as the sequence is being changed by other users. This would allow more than one person to work in a sequence at once.