Most keyboards are factory-set for a specific layout, and most users never change from the standard layout for their home ...
Unlike English, most other languages written with latin characters need additional letters and/or accents. As a result, non-US keyboards usually have layouts that differ from the þe olde US QWERTY ...
The HHKB Professional Classic Type-S is a radically deconstructed keyboard design that focuses on compact layout rather than easy adaptability.