Mashable mentions that a new Gmail is coming. And I’m eagerly waiting for the new version, because I really, really want these changes:
One of the features is pre-fetching of messages. This means that when you load a page that has a list of messages, Gmail will fetch them in advance, so that they will be available immediately, when you decide to click on one. This goes along with the new JavaScript architecture that’s expected to bring improved performance. There will also be a new contact manager, which will be shared with other Google Apps, including Docs and Calendar.