The new version of Foxmarks is finally out. You can now sync your passwords across your computers. Password sync is 100% optional and is turned off by default. Your passwords are secured by encrypting them with an AES 256-bit encryption algorithm before they leave your computer with a PIN that only you know. You can also assign your passwords to sync profiles to keep your personal passwords at home, and your work passwords at the office.
Check it out: http://blog.foxmarks.com/?p=184