As an owner of the ergodox, I appreciate the efforts and iteration here. Sadly, the ergonomics of most non-split keyboards are hardcoded to a magic number. With the ergodox, I currently have the halves about a foot apart and really enjoy typing that way. (I have also "tented" the halves in the past).

I agree that the ergodox is not perfect and the thumb clusters could be improved, I'm just not sold that the butterfly does that.

Here's an old post with my initial impressions of the ergodox [0]. I need to add an update, but I have since purchased a second unit for home and have been typing with the "Norman" layout since day 2.

(BTW, massdrop currently has the keyboard up for sale, but you need to act fast as there is only a day or so left)

0 - http://hairysun.com/blog/2013/04/02/oh-ergonomic-keyboard/