@cobra2 I don't necessarily want to hear an "I told you so" or anything, BUT......tmux saved the day today. i was giving a talk and wanted the projector to display the live-coding stuff I was doing for the audience, while my main screen was just for me.
urxvt on the projector -> tmux
konsole on my main screen -> tmux attach
Worked like a charm. Thank you for demo'ing that functionality to me .... many many many years ago.