Could be the home button for the SE version. You are the king of looking in to details but I could care less of anyone else opinion. I didn't see it on the board anywhere so I decide to share a possible use for lqmt.
Home Button removal is to allow "screen size" not "phone size" to increase significantly. Note "screen size" must align with 1920x1080 standard HD aspect ration.
Antenna band liquidmetal prediction came from Atakan Peker.
Ming Chi Kuo did not have liquidmetal prediction that I am aware of.
Need to screen out weed from "second hand" analysis prediction some time.