If you learn to type fluently, you don't need to look at the keyboard at all anyway, and I assume most Dvorak keyboard users (myself included) try it out and learn it first before investing in a new keyboard, and once you've learned it (or QWERTY for that matter), it doesn't really matter what's printed on the keys... I would rather a keyboard with nothing printed on the keys - I'm sure it'd be a much better tool for anybody to learn any keyboard layout because it removes the possibilty of typing by hunt'n'peck