@BobC, I have added it to the list.
I saw today that Oomi announced that they are soon to begin producing/shipping the remainder of their products. One of which is a smart switch (Oomi Plug), but I can't remember if it WiFi or Zwave?? Anyway, might be worth looking into. I just had a quick look at the tech specs but they don't seem to mention what radio it is using, but says the Oomi hub is needed. I actually backed this a long time ago, and received my plugs as that is all I was after, but have been waiting for the WW Relay to test it out. Now that I have that, I will test it all out when I am back at home in a couple of weeks. I will let you know how it pans out. At that time, I am sure they said it would work with other systems, and that is why I thought it was Z-wave?