If anyone is interested, I would check out not only the new HHBKB, but mechanical keyboards also, the ones you build or have someone build. The amount of programming and customization you can do on them is insane.
I moved from HHKB to a 40%, for two reasons: 1) the mouse is incredibly close to the keyboard. It is close with the HHKB, but you can save even more time with a 40%. 2) You can literally reach every single key without moving your hands at all.
I now have three or four of them, one permanently at each computer and at my work desk.