The Wired and Wireless blog on ZDNet has an article entitled, Wi-Fi to supersede wired Ethernet. The article focuses on how some people feel that 802.11n is going to replace wired ethernet.
It's doubly ironic for two reasons (and that is redundant - both fun words to say). Firstly, I am in the process of upgrading my home wi-fi network to 802.11g. Sorry to dash your visions of me, I'm a gadget lover, but not always an early adapter. Secondly, I spent hours yesterday rewiring our home AV equipment for our new HDTV (notice how I slipped that one in there). With a Tivo, a DVD and now a cable box, there are so many cables to connect everything. While I was doing that, Heather asked me when it was all going to be wireless?
That day might be coming. Right now, you can't get a clean enough, fast enough wireless connection to move the amount and quality of data for a good audio-video experience. When it comes to speakers, we can't move enough power over the air to drive the speaker.
The article mentions "pervasive mobility" and that is a significant benefit to faster wireless technologies. Right now, we have that mobility with voice communications, because we accept lower quality audio for voice communications. However, a home theater setup isn't mobile, so until the costs come down significantly and the quality goes up, those wires are here to stay.
Plus setting up those wires is your Red Badge of Home Electronics.