Hi, I've has some fairly good experiences with the p5-Palm modules. I've written up some applications with it. The most complex one can be found on my site. Anyway ... what you'll want to look into is the Palm::PDB and the Palm::Raw modules. An outline of what you need to do is the following ...:

use Palm::PDB;
use palm::Raw;

use constant PDB_NAME       => 'TimesheetDB'; # the name
use constant PDB_TYPE       => 'data'; # just data
use constant PDB_CREATORID  => 'TiSh'; # get one from Palm
use constant PDB_VERSION    => 261; # just a version number
use constant PDB_MODIFICATION   => 350; # a mod number
use constant PDB_BASEID     => 14360577; # you can leave this blank

my $PDB = Palm::Raw->new();
$PDB->{"name"} = PDB_NAME;
$PDB->{"type"} = PDB_TYPE;
$PDB->{"creator"} = PDB_CREATORID;
$PDB->{"attributes"}{"backup"} = 1;
$PDB->{"version"} = PDB_VERSION;
$PDB->{"modnum"} = PDB_MODIFICATION;

my $record = $PDB->new_Record;
$record->{"data"} = 'anything you want in here';
$record->{"id"} = $id++; # can do that ... do not need to
$PDB->append_Record( $record );

$PDB->Write($filename);
[download]

So, this just generates the PDB, no you'll want to synchronise it also ... an execellent way to do is to use the coldsync package. Actually the p5-Palm utilities are from the creator of the coldsync package. You can have conduits (like in hotsync) completely written in Perl. You also can synchronise from you cradle, using Ir or doing fancy stuff like a network hotsync over a modem ...

Perl is actually a nice fit for writing conduits, as the real challenge is to talk to a system that needs to store the data entered on a Palm. Perl is the ultimate system integration language anyway ;-)

regards, Johan