||unity-dev|| shared desktop app and unity ressource

hi, i envisage to create a shared desktop app...first i'd need to know more 
about the concept of shared desktop: i think about adding a onMouseMove or 
equivalent to grab the mouse position, then for each position send the data 
with unity and then the client can re-create the mouse move wit h these 
data...but this would need a lot of messages, broadcasted to a lot of 
people,and i'd would like to know if t his is the good way to develop such 
app, and what are unity possibility and ressources...

thanks for your advices...

Gabriel