A small nit: proposed UWB (ultra wide band) schemes at 5GHz and 60GHz are considered EHF (extremely high frequency) or millimeter-wave; IR is generally consider

A small nit: proposed UWB (ultra wide band) schemes at 5GHz and 60GHz are considered EHF (extremely high frequency) or millimeter-wave; IR is generally considered to start at at least 300GHz. There isn't a heck of a lot of interference per se at 60GHz, but it is very hard to design a transmitter that is not highly directional and line-of-sight sensitive. My feeling is that the low range and line of sight requirements mostly limit current incarnations of this technology to situations that are already amenable to HDMI cables. There's a good writeup from earlier this year on Ars Technica ( http://arstechnica.com/gadgets/news/2009/02/cutting-the-cord-the-state-of-wireless-hd-video-links.ars http://arstechnica.com/gadgets/news/2009/02/cutting-the-cord... ) that goes through some of the commercial offerings around that time. No idea if any of them are still around, or in what form.