I have one of those natural keyboards, and the gap in the middle didn't screw me up for more than a few minutes when I first got it. That was a surprise -- I expected it to be more of a problem. They are nice to type on -- as long as you are typing with both hands. If you are working on something that requires mouse use, and are therefore entering keystrokes with only one hand, that is a big pain in the butt with the split keyboard. For that reason, I have been moving back to straight keyboards again.