xeCJK is a package written for XeLaTeX which allows users to typeset
CJK scripts easily.

 - different default fonts for CJK and other characters;
 - spaces automatically ignored between CJK characters;
 - special effects on full-width CJK punctuation; and
 - automatic adjustment of the space between CJK and other characters.

This package is licensed in LPPL.

If you are interested in the process of development you
may observe

    http://code.google.com/p/ctex-kit/updates/list

- Sun Wenchang <sunwch@hotmail.com>