A few people have checked the "WTF is Palantir" option in the poll. Quick answer: It's a Palm device based playlist creator for the Empeg. This means you can create a playlist of songs you have on your Empeg on the Palm device, sort the playlist around, then beam the playlist to the Empeg using the IrDA port. The Empeg will insert/replace/append the songs you selected on the Palm device.
It's written to be easy enough for a passenger to use in the car, when someone asks you "So what all do you have on that thing, anyway?"
The website is here:
http://cushman.net/projects/palantir/