To some Reference is as much a part of having a PDA as PIM functions.
Whipping out a PDA to look up a contact is much the same as pulling one out to look up a dictionary or language translation reference.
MDict by Octopus Studios provides an expandable environment to read a range of precompiled reference titles directly on the Handheld PC including Dictionary, Thesaurus and translation dictionaries.
See what John thought of MDict and have your say here on the forum.
Review: MDict 2.1