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.
- http://hopf.math.northwestern.edu/syncal/

pilot2pine
- Converts Palm address book to Pine format.
- http://www.palmopensource.com/software/#pilot2pine

PalmAMP for XMMS
- XMMS plugin to work with the PalmAMP remote control program for WinAMP.
- http://student.cosy.sbg.ac.at/~dent/apps/palmamp/

Pilot-Link
- Command-line tools for connecting to a Palm to sync, add, delete, move, copy, and manipulate Palm data.
- http://www.gnu-designs.com/pilot-link/

CryptoPadSlicer
- Conduit for the cryptographic MemoPad replacement CryptoPad application for the Palm.
- http://www.kybs.de/boris/software.shtml

Astro Info
- GPL astronomy program with color support developed on Unix.
- http://astroinfo.sourceforge.net/

Java Pilot Desktop
- Platform-independent desktop enables communication and data interchange with Palms.
- http://www.ctag.de/projects/jpd/index.html

pi-address
- X11 based address manager for Palm.
- http://me.in-berlin.de/~miwie/pia/

Pyrite
- A Python library which provides high-level object-oriented access to Palm handhelds and their data.
- http://www.pyrite.org/

JustInTime
- Works with the pilot-link to synchronize the time between Unix desktop and Palm. J-Pilot plugin also available.
- http://www.klawitter.de/palm/justintime.html

Coldsync
- Command-line synchronization software for Palm and Visor.
- http://www.ooblick.com/software/coldsync/