SDR>>:
GNU Radio>>:
echolink
HDTV
Route tx/rx to skype

tired, making progress?

http://lwn.net/Articles/267672/
http://lists.freedesktop.org/archives/xorg/2008-February/032906.html
http://fiire.com/fiire-chief.php
http://people.freedesktop.org/~whot/Xi/
http://linux.conf.au/programme/presentations
http://www.rowetel.com/ucasterisk/ip04.html
http://www.rowetel.com/ucasterisk/store.html
http://idahopcug.apcug.org/linuxSIG.html
http://www.digipedia.pl/man/teleport.1.html

hack VNC--- have small docked button on the side of your screen(room-client), when you click and hold it either encapsulates the whole screen into VNC-server and then dragging the button starts up a viewer on the (room-server) and continuing to drag now drags the viewer.

Or, click the side button, then click a window title bar, somehow use xInput (linux) or windows API (java robot class) to get the window dimensions, and open a viewer on the (room-server) that is sized only around the window.

using something like the java robot class, there should be a way to say over the network "open a vnc client with these dimensions, around this part of the (room-client)'s screen and create a new pointer on (room-server) that is **still being clicked mouse-down** dragging the vnc contents around.

VNC on the (room-client) side should make the window disappear, put it behind everything, maybe some fake desktop space somehow that isn't viewable on the screen.