Few mbstring/i18n questions

I am trying to find answers to the few questions I have regarding the i18n & 
mbstring and after exhausting the usual google/manual resources hoping that 
perhaps you folks could render some assistance.

1) When using mbstring is there a way to get a list of all supported character 
sets? (I am particularly interested in Simplified/Traditional Chinese 
support).

2) Outside of mb_ereg() and doing mb_substr() (in a loop) is there a quick way 
to break a multibyte string into an array of multibyte characters?

Thanks,

Ilia

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