How well does Squeak support Arabic?

I've been contracted for a job in which a second phase might include an Arabic 
version of the application. 

The only requirements for the use of Arabic text would be to display text in 
content, text in navigation menus, storing short text notes to oneself about 
the content, copy/paste text, and sending e-mails with Arabic text for customer 
support. (Are e-mail addresses in Arabic too?)

I'm evaluating the best technologies for the job now. 

Cheers,
Darius