KenB - 8:00 pm on Feb 1, 2010 (gmt 0) [edited by: engine at 8:16 pm (utc) on Feb. 1, 2010]
Just you wait, someone is working on giving each light fixture and switch their own IP address so that neither has to be directly wired to each other. You'd simply tell the light fixture to listen to commands from the switches at the specified IPs and then tell the switches to send commands to lights at specified IPs. It would all work via TCP/IP over electric wires.
You think I'm kidding don't you.
[edit reason] tidied up [/edit]
[edited by: engine at 8:16 pm (utc) on Feb. 1, 2010]