>> I don't understand why the choice between IntlCollator and Collator
>> affects compatibility between 5.x and 6.x. Can you explain this further?
> 
> Because if you want Collator in 6, and you want same code to run both
> 5.x and 6.x, then it's Collator in 5.x. If A==B, then B==A.

Yes. Why can't it be IntlCollator in both 5.x and 6.x? In other words
(unless I'm missing something) compatibility between 5.x and 6.x doesn't
affect the naming choice.

> I however think that here usability is
> more important than uniformity for the sake of uniformity. 

I'm advocating uniformity for the sake of usability :-). (for reasons
already given). (I'm a freelance programmer, working on real-world
i18n-related code, not an ivory tower academic.)

Darren


-- 
Darren Cook, Software Researcher/Developer
http://dcook.org/mlsn/ (English-Japanese-German-Chinese-Arabic
                        open source dictionary/semantic network)
http://dcook.org/work/ (About me and my work)
http://dcook.org/work/charts/  (My flash charting demos)