Twitter is beta testing some functionality specifically for business users: the byline. If you’re running a business account you might want more than one person to be able to use it, but it can cause confusion to have more than one person Tweeting under a single identity. CoTweet handles this by allowing multiple people to access a single account, with each person specifying initial to be automatically appended to their Tweets.
Twitter is taking this idea to its logical conclusion by providing a proper byline:
This is a neat bit of functionality and its inclusion in the API should make life easier for CoTweet and Hootsuite users (not to mention other clients that will be able to incorporate it). Twitter is testing it at the moment amongst a limited group of business users ahead of a full launch to “all business users and ecosystem partners”.