CeDbViewer will let you see all the information hidden deep within the CE databases on your Pocket PC. Invaluable tool if you are doing development on the device and need to know exactly what is going on with your custom database or one of the databases shipped with the device (Contacts, Appointments etc, it's all there). All the information needed for effective use of the CE database API will be present in a convenient form on your screen. And just as extra, a simple duplicate buster tool will let you quickly fix those synchronization errors.