In an attempt to revitalize Thunderbird in version 3.0, Mozilla has announced "Mozilla Messaging" which promises significant improvements to the email client—like calendar integration, better search, and a chat app. While the core focus will still be on email, Mozilla seems committed to developing a product that will offer a broader range of communications tools. Whether or not it will be good enough to get Thunderbird back on track remains to be seen. [Mozilla Messaging via Lifehacker]