Making multiple projectors talk (together) (help)

so, i have this question. I was thinking…
Is it by any means possible to control one flash_projector from another flash_projector.
example: video-outputting one flash_projector and having the other projector as a control_module. Does anyone have any ideas? Perhaps one of you tried it once?
I was thinking something in lines of having the control_module alter some variables in an external file, and then ‘high-refresh-rate’-read them from the output_module…

ideas and/or tutorials are very welcome.

cheers and chins up.

Mikz // volvoe.dk