Just typing this in Bestbuy in New York. I have been looking at an American version as well.
The Nuvi 200 I just looked had voice selection for Cantonese, Taiwan Mandarin, & Mainland Mandarin. But no Chinese Language for selection. Hope this helps.
If you are using garmin web-update, after updated to the latest firmware and rebooted your nuvi200, run web-updater again and it should tell you something like "you already have the latest firmware, would you like to look at more options", click on yes then it should give you some asian text options. Tick the one that you want and continue. Tried on an English nuvi200 last weekend and it now can display command and voices in Chinese