After a limited test, Twitter has decided to roll out the opportunity to expand tweets to 280 characters. This doubles the existing capacity. While some object based on their reluctance to read longer comments, I think this is a good thing.
I have been critical of a specific application of twitter – the twitter chat. A chat is a workaround attempting to use Twitter for synchronous chats. I have explained my issues in previous posts. After observing a significant number of such chats, I found them shallow. They just seemed unproductive for the time typically committed. This new capacity in combination with an adjustment in the number of questions could allow participants to craft more thoughtful contributions and engage with each other more frequently.