I don’t know if you’ve looked at HDMI cable prices recently, but they are really expensive. Honeywell is trying to provide a more economical solution with its HDMI to Ethernet converter. Meant for in-wall installations, the HDMI would let one use cheaper Ethernet cables, which are widely available in longer lengths than HDMI ones.
The general issue with long cables is that the signal deteriorates exponentially beyond 4 yards. While most users don’t have this need, someone wiring a home might. Because the bandwidth requirements for Ethernet are not as tight as HDMI, I didn’t think that this would be such a good idea (especially for 1080p signals), but it might just work, I have not tested it. Please post a comment if you try it.