- easier to transition from QWERTY since it changes fewer keys (particularly the QAZXCVB shortcut keys)
- scores marginally better than Dvorak in different models, e.g. http://mkweb.bcgsc.ca/carpalx/?colemak
That said, if you're already this deep into Dvorak, I don't think the gains are worth the effort involved in another switch.
That said, I switched back to QWERTY about 5 years ago when Parkinson's stopped me from touch typing with my right hand. Now I type with my left hand and one finger on the right. I have to look at the keyboard. I use too many different keyboards to practically relabel the keys. It didn't take more than a few weeks to re-learn QWERTY on the left hand. My hands hurt more now, but at least keyboards are better now than they used to be.
Much of my work history involved lots of travel and working on sites and it wouldn't have been realistic to try and adopt it. It was tough enough working on French keyboards. AZERTY?
I did visit a client in Chicago once and sat down at the guys desk to find a Dvorak keyboard on a solaris desktop. After 2 minutes of finger picking and eye scanning i kind of picked it up.
I also largely typed on US QWERTY keyboards for a couple of years as thats what we had at Sun, to the point when i went back to GB layouts i just have a switch that when i type SHIFT-3 i take note of whether i get a # or a £ and my brain seems to auto remap on the spot
As far as I can tell, it has not affected my speed with QWERTY at all. Using QWERTY is slightly frustrating as I'm about half as fast as with Dvorak, but I still do the same old annoying 30 - 40 wpm with my four-finger peck technique that I couldn't unlearn.
It does take a few seconds sometimes to adjust when I switch layouts, but I can hop between them pretty easily. The two never really interfere with each other. With Ctrl-C etc., I seem to associate that with a letter, not a physical movement, and it maps too. (Video games are a different question. I usually end up remapping everything.)
When I first started, I found it easier to learn touch-typing in Dvorak because I couldn't cheat and look at the keys.
It's great when I'm using my own devices, but is irritating when I have to use someone else's computer, so I have to suddenly become a hunt-and-peck loser again.
On the positive, nobody else can use my computer either. :-P
I've gone the whole hog and use an Ergodox as well, for maximum non-interoperability.
It's odd that I could just continue progress that quickly and there's been absolutely no problem switching between keyboard layouts.
Come back a year later, and I was way better at it --- with no practice whatsoever in between.
I still remember the day when I lay on the grass outside my dorm room with my laptop on my stomach typing a paper while looking at clouds. It was wonderful.
I recommend getting a gaming mouse were you can remap hot keys to spare buttons.
In most (perhaps all) languages, assuming they are spelled phonetically, a syllable-based organization would be best. In most (perhaps all) languages syllables are mostly consonant-wovels-sequences.
So the bestest keyboard would be: consonant on the left and vowels on the right. The vertical organization would be: most common syllables are on the same horizontal line and the mostest common on the top (or center?) line, but those details depend of course on the particular language.
I can switch between Dvorak and QWERTY in just seconds.
I can spot when someone else is a Dvorak typist based on their typos: https://news.ycombinator.com/item?id=29407601
I have a custom Dvorak layout for any ortholinear keyboard with at least 36 keys: https://github.com/1MachineElf/qmk_firmware/tree/_sb4dv/keyb...
Sometimes I go on odd rants about how common shortcuts can be easier to use in Dvorak in combination with a left-handed mouse: https://news.ycombinator.com/item?id=26796214
So how did you go about learning it? My pathway was GNU Typist: https://www.gnu.org/savannah-checkouts/gnu/gtypist/gtypist.h...
What made you want to learn it? For me, the Dymaxion map in this XKCD cartoon appealed to me because I liked XML and shoes with toes (like Vibrams): https://www.explainxkcd.com/wiki/index.php/977:_Map_Projecti...
I use it using a Split keyboard,