Anything can be hacked. The Palm Pilot and it's clones are complex little devices that can be tweaked almost endlessly. Most "hacks" for the Palm Pilot fall into the category of system extensions, i.e. they enable the Palm to do someting it could not do before or they improve the way that that Palm does something currently. For example, a Palm Pilot hack might enable the Palm to use it's screen in landscape mode instead of portrait mode.

To explore your Palm Pilot, try an application called Pilot Hack. You will most likely want to begin with the Pilot Hack Tutorial by Darrin Massena.

Third-party applications which provide strong cryptography for the Palm Pilot are available from several vendors.hack palm pilot