in reply to The most useful form of typing is...
Yes, I know all the lewd jokes about one-handed typing. However, I shattered several bones in my left hand when I was younger, and was faced with the need to type one-handed. I learned the right-handed Dvorak layout out of necessity. My old speed was quickly matched, then surpassed.
I've since regained the use of my left hand (gotta love good surgeons), but I continue to use right-hand Dvorak. I type around 80WPM, which is plenty fast for code. And, I have a hand free to look up code in the Cookbook, sip my coffee, adjust my stereo, and so on.
An additional added benefit: if I get RSI in my right hand, I will just learn left-handed Dvorak, and let my right recover. ;-)
.oO all things connect through the motion of the mind