mlterm:
http://mlterm.sourceforge.net/Here is mlterm 2.9.2 which is 'Multi Lingual TERMinal emulator on X'.
I compiled it with uim support. If you select proper uim input method in config window and save/exit, then you can use uim in mlterm.
Control+tap: Menu
Control+Fn+tap: Config window.
Control+m: Open PTY
Control+n: Next PTY
Control+b: Previous PTY
To manually change the settings, see .mlterm directory.
Enjoy!