uim aims for multilingual input method library.
It works as an XIM server or an input module of GTK+ 2.x.
And currently it supports following input methods.

  Chinese:    New Pinyin (Simplified), Pinyin (Unicode), Pinyin (Traditional)
  Japanese:   Anthy, Canna, Prime, SKK, T-code, TUT-code
  Korean:     Byeoru, Hangul (2-beol), Hangul (3-beol), Hangul (Romaja)

WWW: http://code.google.com/p/uim/