SecuBox for Pocket PC, has achieved "Designed for Windows Mobile" certification through Microsoft's Mobile2Market program. SecuBox provides on-the-fly encryption of sensitive data stored on mobile devices and their removable cards.
With SecuBox strong encryption, secure file deletion and automatic data protection you will not only protect sensitive information on your PDA or smartphone but also prolong the life of your memory card.
Overall I think Secubox is a great program with a worthy cause that deserves a good look if you’re concerned about the safety of the information on your device. (By Brandon Steili, Just Another Mobile Monday)
Aimed to improve user experience and ease day-to-day data protection routines, SecuBox 1.2 comes with command line support and close integration with Windows Mobile File Explorer. You can now use SecuBox directly from the command prompt which makes it ideal for automating repetitive tasks. An extensive set of command line options gives you pinpoint control over SecuBox's actions.