My reactions range from "that looks so cool!" to "why would you DO that??", often in the same sentence.
Godly B U T T S
THOSE HEXAGONS. I really want to imagine these would finally get my emacs setup just the way I want it.
You fool, there is no endgame to Emacs setup customisation!
That is my reaction to many keyboard designs I have seen. I can't scoff too much though, since I'm typing this from my hand-assembled ErgoDox. (But I can scoff a little because I haven't experimented with my own designs.)
There's this one from 2010 (for a while, it was in the lobby of the Google Tokyo office):
with explanation here (Google translate will give you a rough idea): https://japan.googleblog.com/2010/04/google.html