From the PalmOrb page:
PalmOrb is software that allows you to use your PalmOS device as a LCD status display for your computer! You can display system stats (such as: CPU load graphs, CPU temperatures, free disk space), news alerts, stock indexes, WinAmp graphs, etc. PalmOrb works by pretending to be (or emulating) a real LCD; a Matrix Orbital LK204-25 LCD.
(via HackaDay)