A lot of people have told me that the Dvorak keyboard is inherently superior to the standard QWERTY keyboard. I'll admit, I've been skeptical mostly on the grounds that superior things are usually adopted quickly by people who pinch pennies for large corporations and if if saved a hundredth of a penny by changing over to Dvorak it seems that at least large corporations and the government would force everyone to change over to the cheaper system
"The trap constituted by an obsolete standard may be quite fragile. Because real-world situations present opportunities for agents to profit from changing to a superior standard, we cannot simply rely on an abstract model to conclude that an inferior standard has persisted. Such a claim demands empirical examination. "
I think this article provides ample, and interesting examination kids. Check it out.