Adding Twitter information to your contacts has been a slow, manual, one-contact-at-a-time affair. If you wanted to get all your friends’ Twitter names into the Contacts App before OS X Mountain Lion, you’d need to open Contacts, edit each contact, and paste or type their info into their specific contact card. The length of time that would take, depending on the number of folks you know and/or follow on Twitter, kept most of us from even thinking about doing it.
However, with Mountain Lion, Apple and Twitter have made it a lot easier. Here’s how to add them all in one fell swoop..