Here are some small things, that crossed my mind when using MyPassword. I hope it's ok that I put them together.
* Shortcuts for all menu items.
* When a window opens (e.g. import dialog), sometimes it's possible to close it with Esc key and sometimes not. Would be nice to unify (preferrably making it possible).
* The user can browse through tags or search results using navigation keys. Could (s)he select current password with Enter as well, not only double click?
* Search: I didn't find any information about what wildcards are possible to use. When typing title od tag, could some information about this appear (like when typing password title)?