Local nodes for cacheing content and updates

Would be a nice eventual feature to be able to have a local cacheing / control server which would handle content distribution on an internal network.

Use case I can imagine is looking after 10 plasma displays each in 10 sites, needing to roll out a 600mb HD video to all displays, would have 1 client at each site grab the file from master xibo server and distribute to displays on LAN. Could either be built into existing client (client would need to be aware of its neighbours) - or a seperate application run either alongside xibo client, or on its own machine.