LCD4Linux can control a PalmPilot handheld running PalmOrb, a little progam that emulates a MatrixOrbital LK204-25 Display.

Instead of a real Palm, you can even use POSE, the Palm OS Emulator (that's where I got the picture from).

Display Section

Display <name> {
    Driver    'MatrixOrbital'
    Model     'LK204-25'
    Port      <string>
    Speed      19200
    Icons     <number>
}

Parameters

Driver'MatrixOrbital'
Model'LK204-25'
Portserial/USB device the Palm is attached to (e.g.'/dev/ttyS2' or '/dev/tts/USB1')
Speed19200 (fixed)
IconsNumber of user-defined chars reserved for Icons (default: 0)