Twitter has announced that they have begun testing a new feature
specifically for business users. The new feature allows multiple users of a
Twitter account to identify themselves without taking up any precious
characters.
From the
Twitter Blog:
"The feature we are beta testing is called 'Contributors' – it enables
users to engage in more authentic conversations with businesses by
allowing those organizations to manage multiple contributors to their
account. The feature appends the contributor's username to the tweet
byline, making the business to consumer communication more personal;
e.g. if @Twitter invites @Biz to tweet on its behalf, then a tweet from @Twitter would include @
Biz in the byline so that users know more about the real people behind organizations."

Whilst
the feature is only being released to a subset of users at this stage,
it will be be supported by the API so business focused applications
such as CoTweet and Hootsuite will be able to integrate the new feature.
This kind of feature would be great for customer service accounts such as Telstra's
@bigpondteam or for
politiciansto help identify when a ghost Tweeter is at work.