Wires/bugs so you can hear what everyone in the room's saying over a reciever/wjf helmet/progia/whatever...
I like this idea alot. In general I like the idea of recordable media. Be is a wire, a digital voice recorder, or digital video camera.
I guess wires could work just like portable security cameras minus the video. Instead of names, just append the @voice to everything so it could look like..
Someone to [someone]: *in a deep japanese male's voice*
Or something like that.