The thing that bothers me most about Twitter’s API announcement [http://groups.google.com/group/twitter-api-announce/browse_thread/thread/c82cd59c7a87216a?pli=1] is that very few of the most useful features of Twitter were actually their ideas. * Hashtags. * Retweets. * Location. * Search. * Lists. * Conversation view. * Inline images and links. * Short