The only official Rasplex installer I am seeing only seems to be compatible with the Pi and Pi2, even though the page you get it off of mentions Pi 3 compatibility.
How does one install Rasplex to a Pi 3? Is Pi 3 not really supported yet, any word on when the Pi 3 will get officially supported by Rasplex ?
You use the image for the Pi2. It works on the Pi3 as well.