Click to see details of a touch typists bad dream.
If you don't know what is wrong with Japanese keyboards, then you are obviously not a touch typist and I bid you good day, sir. People who have to look at the keyboard to hunt and peck their way through a lengthy diatribe won't understand how frustrating it is to have extra keys on the right side of the board and on the bottom row messing up your ability to type 90 words per minute (which is how fast I can type).
I won't miss Japanese keyboards and how the layout differences slow down my typing by introducing errors and forcing me to learn a new "reach" to touch type properly.