Forensic specialists periodically encounter unusual devices and new technologies normally not envisaged as having immediate relevance from a digital forensics perspective. The objective of the guide is to help organizations evolve appropriate policies and procedures for dealing with Personal Digital Assistants (PDAs), and to prepare forensic specialists to deal with new situations when they are encountered. This guide provides an indepth look into PDAs and explains associated technologies and their impact on the procedures for forensic specialists. It covers the characteristics of three families of Pocket PC, Palm OS, and Linux based PDAs and the relevance of various operating systems associated.