Astro Info - - GPL astronomy program with color support developed on Unix.
Coldsync - - Command-line synchronization software for Palm and Visor.
CryptoPadSlicer - - Conduit for the cryptographic MemoPad replacement CryptoPad application for the Palm.
Java Pilot Desktop - - Platform-independent desktop enables communication and data interchange with Palms.
JustInTime - - Works with the pilot-link to synchronize the time between Unix desktop and Palm. J-Pilot plugin also available.
PalmAMP for XMMS - - XMMS plugin to work with the PalmAMP remote control program for WinAMP.
pi-address - - X11 based address manager for Palm.
Pilot-Link - - Command-line tools for connecting to a Palm to sync, add, delete, move, copy, and manipulate Palm data.
pilot2pine - - Converts Palm address book to Pine format.
Pyrite - - A Python library which provides high-level object-oriented access to Palm handhelds and their data.
Syncal - - Syncal reads a current ical calendar file, an archived ical calendar file from the last time syncal was run, and a Palm device DateBook database and reconciles them.