[Disclosure: I work for AgileBits, the makers of 1Password] I didn't come here to engage in sales pitches, but when you specifically ask for a feature introduc

[Disclosure: I work for AgileBits, the makers of 1Password] I didn't come here to engage in sales pitches, but when you specifically ask for a feature introduced in 1Password 4, it is hard for me not to mention it. 1Password Mini lives in the Menubar and does what you wish. There are also options for Alfred and LaunchBar integration.