Good find. However, I don't think that Dvorak is that much superior than QWERTY. Sure, I learned to touch type in a matter of less than a month, and became a faster typist using Dvorak, but that's only because we never really were taught to touch type with the QWERTY in school.
This is one of the reasons I haven't made the move yet. But I've read about people switching back and finding much more strain...
If I often make typos, could changing the layout help me in any way?