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Glancing through some of those older FAQ articles I see that UTF-8 encoding is only going to become more prevalent for multilingual sites. I'm glad to see this getting more formal treatment by a standards body as it will certainly make it easier for my work down the road. There is still a stigma about Unicode use in Asia unfortunately.
I'm in the process of converting one of my site completely to Unicode. It is certainly going to make maintenance and development of good typography a lot easier.
It really depends on the language group you're targeting. Only about a year ago I was still being warned by Japanese programmers not to go with Unicode for a web/database project. I hear similar things in the Chinese market. I guess you just need to keep in mind who your target audience is. If you're targeting a tech-savvy crowd then UTF-8 probably won't phase anyone.
The safest suggestion is still to use local encodings for Japanese and Chinese sites. Only a few years ago there were some real compatibility issues at stake. I think there are some lingering doubts about Unicode that were burned into developers in Asia, not all of which are valid in today's Internet.