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Weird Keyboard Layouts: A Showcase
(www.techspot.com)
This is a most excellent place for technology news and articles.
QWERTY is one of the least efficient keyboard layouts. It was designed to intentionally slow down typing by spacing common letters far apart, to prevent typewriter keys from jamming. It's really not great for modern electronic devices, but it's so widespread that it's very hard to change.
Qwerty wasn't designed to slow people down. when you account for practice time no layout is significantly different in the real world. The limit is how fast you think not how fast your fingers move.