Thinking about the Fn key location (on a lateral aspect), it makes more sense where it is now, than the supposedly aesthetically balanced position aligned to the spacebar. Alignment vs symmetry to the case.
The left thumb rests within the left side of the spacebar, and the right thumb will require more reach than the , key when reaching the far top right hand corner of the keyboard. Aesthetics aside, the functionality of its location is where its beauty is at.
On another thought, I would still much prefer to have the option to move the fn key to the normal switches. Using a wrist rest would make the current side FN a difficult button to reach!
The video showing the switch insertion, keycap removal and fn key pressing, seems to suggest that the fn key is lighter than a conventional tactile mouse switch, more more like a longer throw microswitch?? If you had pictures of the actual switch used, or its implementation, it would be nice.
Secondly, the video shows a case that has 4 rubber feet, and no extendable legs.
I am waiting for this board to become reality! I want two right now
(and I have put off buying any more 60% boards in expectation of this one becoming real)