Yes there is. If you save your game by exiting and then perform a HotSync, your savegame file is retrievable from your PC in the event that you need it. The savegame file is located in the Palm Desktop directory (usually \program files\palm (or palmone)\user_name\backup). You can even copy the savegame files to other folders to preserve savegame files at different points in the game, or even different games. I do that all the time when I'm testing.

The game is easy to restore, as well. Double-clicking on the file VillageSavegame.pdb will put it in QuickInstall, ready to be HotSynced back onto your Palm. Bear in mind that, unless you paused the game before you synced it to your PC, whatever time elapses between the backup date/time and the time you restore it will be treated as if you left it running unattended for that period of time.