In short, this offer allows for the organization of tweets either by hand or through an API so a more organized presentation of topics and events reports can be put together. From TechCrunch we learn
Twitter will let you create custom timelines based on topics, hashtags and more from Tweetdeck, it announced today. Twitter is also providing an API to allow developers to build this functionality into their products.
This will allow people to create powerful streams of information out of Twitter’s public firehose, effectively allowing anyone to curate individual streams of data tailored to a topic.