I recently helped Moritz Horsch to develope a nice password tool called PALPAS. It is a password-store-like tool but the nice thing about this tool is that it synchronizes passwords between several devices without storing the passwords in any form on a central server. The tool only stores some information that alone is completely independent of the passwords. Think this is not possible? See the project page or the paper. The tool is open source and the code will be available on the project page soon.