7bit layout (http://geekhack.org/showthread.php?23572-Phantom-Custom-Keyboard-Group-Buy-(Order-Only))!
Show Image
(http://deskthority.net/w/images/thumb/5/51/Phantom_7BIT.png/541px-Phantom_7BIT.png)
Dunno if they're still accepting orders though.
Thank you for the recommendation. Besides being late to join the group-buy, the layout I'm after is nothing like those that thread is about. I have resolved to stick with a layout which mirrors the way laptop keyboards are laid out:
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