Twitter supports username attribution in multi-user group accounts
I noticed something interesting in a recent @godaddy tweet. In addition to the usual client attribution (via web), the tweet had a linked username attribution (by Salem_P). I'd never seen by attribution in a tweet before.
In any case, it saves group/corporate brands a few characters. (An ad-hoc hack corporate accounts often use is signing tweets with initials like "^SP" inside tweets).
I wonder how long this has been supported by the API. I just don't see it used, even by group clients like CoTweet and Hootsuite.

