Java Psion Link (JPL) is intended to be a
cross-platform solution for transferring files
between Psion Epoc PDAs (netBook, series 7, 5Mx,
and revo) and any computer with a serial port and
the ability to run Java.
Information regarding Project Releases and Project Resources. Note that the information here is a quote from Freecode.com page, and the downloads themselves may not be hosted on OSDN.