Phil Spencer - Popular shareware and freeware programs for the Psion 3a, 3c, Siena, Series 5 and Geofox-One machines.
The Psionics Files - A project for collating information about programming the Psion Series 3 and 3a which is not in the manuals provided with the machines.
SeePsion - Read, write directly Psion Base serial 3 with logical synchronization. For PC Windows 95, 98, NT.
