You missed the original contoured keyboard, Maltron: http://www.maltron.com/store/p20/Maltron_L90_dual_hand_fully_ergonomic_(3D)_keyboard_-_US_English.html
I have/had a Dactyl, Advantage2, and Advantage360, but the Glove80 is definitely my favorite!
Great to see this on RTINGS! I don’t agree with their assessment of the build quality though. The Glove80 is very light, which may give an impression of subpar materials, etc. But I was surprised how sturdy and nicely built it is. Also, looking at the competition, at least it’s not a (literal) echo chamber like the Kinesis Advantage2 and even though the 360 Pro might look more robust, it quickly gets scratches from the original palm pads.
You mean like a Kinesis Advantage2 (and its predecessors)? Monoblock, 20 degree built-in tenting, thumb keys and key wells.
(The linked keyboard looks quite bad from an ergonomics perspective. It has quite large positive tilt, which is bad for your wrists.)