I recently added a new ability to my anaylzer to load in a different set of monogram and bigram frequencies. This makes it possible to analyze layouts for different languages, in which the letter and bigram frequencies may be differ somewhat from English. You can try this for yourself on my updated layout analyzer, but the results are also summarized here:

Note: to generate these, I used frequency tables for the language in question, but the layout tested is the just the standard Colemak(DH)/Dvorak/Qwerty layout, without the special characters or modifications (QWERTZ/AZERTY/etc) which some of these languages use. So it's not a comprehensive analysis as it might be, but hopefully still a useful indicator.

Danish

Layout    sf-bigrams  score
colemak_dh  4.27%     1.714  
colemak     4.27%     1.750  
dvorak      4.97%     2.015  
qwerty     11.83%     2.348  

German

Layout      sf-bigrams  score
colemak_dh    4.98%     1.695  
colemak       4.98%     1.759  
dvorak        3.49%     1.900  
qwerty        9.93%     2.385  

French

Layout      sf-bigrams  score
colemak_dh    3.60%     1.630  
colemak       3.60%     1.644  
dvorak        3.56%     1.894  
qwerty        9.25%     2.348  

Spanish

Layout      sf-bigrams  score
colemak_dh    3.25%     1.655  
colemak       3.25%     1.683  
dvorak        2.48%     1.889  
qwerty        9.65%     2.311  

Polish

Layout      sf-bigrams  score
colemak_dh    3.80%     1.929  
colemak       3.80%     1.948  
dvorak        6.82%     2.174  
qwerty        9.43%     2.474  

Swedish

Layout      sf-bigrams   score
colemak_dh    4.13%      1.708  
colemak       4.13%      1.730  
dvorak        4.31%      1.983  
qwerty       10.15%      2.316  

On this quick test, it's interesting to note that:

- Qwerty is by the far the worst in every language :P
- The language gaining least from Colemak is Polish. French and German gain the most - presumably because these languages are "closer" to English.
- There is a noticeable same-finger penalty in all languages, but at least in Colemak it's always less severe than Qwerty.
- Colemak beats Dvorak in each language, although interestingly, Dvorak has low same-finger for Spanish!
- Mod-DH still comes out the best (of the 4 layouts tested) in each language (yay!)

Those who know some of these languages might be able interpret the results better than I can.