Raindrop is an exploration in messaging innovation being led by the team responsible for Thunderbird, to explore new ways to use Open Web technologies to create useful, compelling messaging experiences. A central principle behind Raindrop is that messaging should be personal — they want Raindrop to be people-centric both in how they process messages, and in how they can help give people control over their personal data and experiences. When a friend’s link from YouTube or flickr arrives, your me