[kod]

So buy a utron? http://xahlee.info/kbd/uTRON_keyboard.html

[kentt]

Wow, I've looked for something like that before, but never found anything. Thanks for pointing this out.

[randlet]

Keyboard layout looks good, but it doesn't look like the two halves can get far enough apart for me. Also $420USD !!!

[arm]

400 USD and up seems to be the general price range for such keyboards in Japan. See also The Esrille New Keyboard − NISSE¹ (my personal dream keyboard).

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¹ — http://www.esrille.com/keyboard/

[pekk]

You already pay a high premium for Topre switches.