I photoshopped this really quick for to compare ruby on Dvorak and Qwerty. https://img.skitch.com/20110908-q24qths9k4u6438wpd989qreci.j...
Everyone I know who recommends Dvorak is a programmer. And I'm more than content with my comfort and speed typing English; the pain of slowing down to type brackets all the time when programming is more of a pain point for me.
So with this in mind, it's interesting to note that Dvorak has moved the quote key to a slightly less favourable location, and basically banished paren/bracket. Not a solution for my pain point!