Just after I got the Japanese edition of my book, I learned that it’s also available in Chinese.
Apparently it’s been out since March 2009, but I didn’t even know they were working on a translation of it. This is good news, though, so I’m not going to complain.
The IA China group has set up a topic page for the book as well: http://www.iachina.org/tiki-index.php?page=designwebnavigation