However, the charm seems to be on the Dvorak keyboard, since everything I've done on that has found a market.
The Dvorak keyboard is an alternative way of putting letters on an English keyboard.
This reminds me of when I tried to switch to a Dvorak keyboard.
This is the most common practice because it doesn't require a purchase of a special Dvorak keyboard.
Later designs, notably the Dvorak keyboard, were said to allow faster typing, but they never caught on.
We had what was probably the first complete Dvorak keyboard on the Rainbow.
As for 'a' and 'o' being together - they are on my Dvorak keyboard.
This site shows the layout of the Dvorak keyboard.
Dvorak keyboard was standard for fifty years, and they still made these things.
For non-English use, these differences lessen the supposed advantages of the original Dvorak keyboard.