Version: 1.0 (using KDE 3.5.9) OS: Linux Installed from: Ubuntu Packages Krfb desktop sharing allows passive viewing or active control of the mouse and keyboard. In the passive mode there should be a one-to-many multi-cast option to allow a small group or team to view the remote display. This would greatly help working with groups and even lectures or seminars delivered via the net. Maybe this is an IPv6 thing.
VNC Reflector seems to do a bit of this and could be possible collaboration partners: http://sourceforge.net/projects/vnc-reflector/
Collaborative VNC looks like another start in that direction: http://www.benjie.org/software/linux/collaborative-vnc/ Like VNC-Reflector, it seems untouched in many years (2005).
I agree this would be a nice feature to have.