Can individual viewers add personalized software effects (zoom, pan, tilt..) to the stream they receive?

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I would like to know if the following feature is -- or can be -- supported within a UStream broadcast.

Many cameras produce a stream of high enough resolution that it is possible to reproduce entirely in sofware the effect of the camera zooming, panning, and/or tilting. That is, in "hardware" or "real" zoom, or pan, or tilt, the physical camera changes its physical configuration: the image pans to the left because the camera lens itself is moved. The newer high-def camera can stay completely stationery, and the zoom, pan, and tilt effect is produced by processing the cam's images in real time.

In theory, this means that eveh individual viewer could have software controls in it to produce these effects on the individual and personal copy of the stream that the viewer receives. The end result would be that each viewer could fine-tune the view that he alone sees.

There is an earlier post to this forum about the "cool" control of the camera that the was made available to viewers of Burning Man this year. But in that case, at any given moment, a particular user was allowed to control the physical camera. Anyone watching that same camera would receive the stream as designed by the one user with control at that moment. By contrast, doing the pan, tilt, and zoom at the viewer's end means that there could be as many different views of the event as their are viewers -- which, of course, is what actually happens in real life. It seems like a very powerful feature. Implementing it could be done in several different ways, each fundamentally relying on some software "intelligence" that would either have to be built-in to the viewers and/or the platforms on which they run, or it would have to be functionality added by the Ustream viewing software.

Does Ustream support such a feature? If it does, how does a broadcaster enable this for viewers? If it doesn't, is it possible for a broadcaster to customize the viewing software to enable the feature?

Thanks VERY much in advance for any information you can share on this question.