DataViz today announced a Mac OS X version of Passwords Plus, its secure application for storing private information such as credit card numbers, Web site log-ins, medical information, and more. Passwords Plus synchronizes between a Mac and a Palm OS handheld or smartphone, ensuring that your information stays up to date. In addition to protecting data with a password, Passwords Plus features 128-bit Blowfish encryption on both the Mac and the handheld. The application sells for US$29.95.