Shelf ➹

Shelf is an app for Mac OS X that looks at the current foreground application, and tries to figure out if what you’re looking at corresponds to a person in your Address Book. Then it’ll tell you things about them.

I’ve recently taken up maintaining a fork of it on Github where I’ve been adding a few Xobni-like features such as Spotlight based search of e-mails and attachments related to the current contact.