But one day I had to do some maintenance on some random computer in a closet at work, and the only spare keyboard we had sitting around was one of the old Microsoft Natural Ergonomic 4000's, and using the split-wave layout was a revelation. I was officially intrigued by ergonomic keyboards. I've since tried typing on a Truly Ergonomic and an ErgoDox, looking for the sweet spot between mechanical and ergonomic, but it just wasn't the same. I have yet to try a Kinesis Advantage because I don't know anybody that owns one.
I now have two Microsoft Sculpt Ergonomic keyboards, one at home and one at work. And I love them. I didn't even realize that normal keyboards were causing me pain until I had to switch back to my old Das temporarily for a day and the whole of both of my forearms were on fire at the end of it. But in spite of all that, I still really really miss the Cherry MX Blue switches from my old Das Keyboard.
My point is that my dream keyboard, ignoring whether or not it's possible/feasible, would be a split-wave Microsoft-style ergonomic form factor with Cherry switches. If somebody out there put up a kickstarter for a keyboard like that tomorrow, I would empty my wallet backing the project. Maybe the Das Keyboard folks are here reading this.
A boy can dream.