Note, the following instructions relate only to the Palm version. The Pocket PC version has a separate savegame file that can be manually moved around.

1) Go to preferences and "pause" the game
2) Use a utility such as "Backup Buddy"or "Backup Man" (make sure to check the setting for "save unsaved preferences" so that this is enabled) and backup the device completely. BZBackup (Botzum Backup)has also been suggested in these forums.
3) Restore all the above data to your new device (which of course means doing a full restore to the new device).
4) Unpause the game