Honeywell's HDMI-to-Cat5 converter: Eat the rich
This is actually a really good idea. It lets organizations have a centralized AV office and stream content to each room as it sees fit. But you just know some rich douche will have this stuffed in his walls and never use them and ten years from now when HDMI is quaintly obsolete other rich douches will hire workers to just pull them out and plasterboard over them.