JogDial
You can use JogDial on supported machines (ie. Sony Clie).
JogDial works on KDIC/KDIC DA as follows:
KDIC Main screen
Moving previous/next word with Jog up/down
Changing dictionary with Jog Click
Goto Line screen with Jog Long Press
KDIC Line screen
Moving previous/next word with Jog up/down
Moving word by 1-page basis with Jog Press & up/down
Goto Main screen with Jog Click
KDIC All dictionary screen
Select dictionary with Jog up/down
Goto selected dictionary with Jog Click
KDIC DA
Moving previous/next word with Jog up/down
Changing dictionary with Jog Click
Exiting KDIC DA with Jog Long Press