You got it, Asurion's AddressBook. (Yeppie, *that* Asurion, the mobile insurance folks.)
AddressBook vBeta Application for Android | Communication
Can't speak on that version, but the version released today for 2.0/Droid looks great and is fairly smooth, especially for a beta. Only problem I've encountered so far-- it choked when initially pulling the list of Twitter friends. Stopped when it got to #100, each and every time. But no fc, so I could gracefully exit that particular screen.
Facebook integration is killa. You can "Match Friends", and tell it to keep or change pics, during initial pull of FB info, or anytime after via the menu. So if there's a mismatch, it can be easily cured. Later, pulling up a contact includes a button so you can check out that person's latest posts -- withOUT ever leaving the app!
Install walks you through the "mix-in"s you'll need to also download (twitter, facebook, others), depending on what you want. The whole dang thing is just sweet, from easing editing chores to reviewing your list of contacts.