Twitter Is Working a Feature Letting Multiple Users Co-Author a Tweet

Twitter is trying out a new feature that allows multiple users to co-author a tweet. While the feature, entitled Collaborations, isn't yet publicly available, a version was first spotted in the app's code by mobile developer Alessandro Paluzzi, according to TechCrunch.In December, Paluzzi saw that Twitter was working on Collaborations. He later spotted a mobile button for the feature on the tweet composer screen, as well as a demo of how the co-authors' profile photos would appear on tweets.Twit...