While being used to a comfortable keymap switching behaviour in MacOSX, my new eeepc had formerly lacked such functionality. The fairly common case to switch between DVORAK and 한글 input can be accomplished easily with a helper program such as 나비, which incidentally happens to be aware of both input methods. In order to use special characters (punctuation, dash, ...) within the 한글 input method, however, these keys should be mapped back to the standard US (qwerty) keymap. This file placed under /usr/share/nabi/keyboard may be of special interest.