I am not sure Twitter is "new news". It's like saying "everybody screaming at once about everything they want is the new opera". Surely, among that screaming there would be opera singers, and among Twitter noise there would be news. But Twitter is not news. Maybe something that could be used as raw source for "new news". There are several projects aimed at that, but mostly very National-Enquirer-like kind of news (more looking to shock and entertain than to deliver information).