This is my first attempt at writing a blog post in Dvorak. I spent three minutes doing it.
Yeah, to retype your entire sentence took me about thirty seconds. It gets faster all the time. Stick with it, it feels so much better to type in dvorak, my hands don't hurt nearly as much as they used to. I don't know if thats your reason or not, but it sure helps me!
I actually found that even after I'd become fluent in Dvorak, it was difficult to switch between it and QWERTY (in both directions). Over time, however, I've come to be able to differentiate between the two - though I'm still slower in QWERTY.