The messages are then processed and categorized by Raindrop in personal and bulk categories with personal messages prioritized over the others. This concept is not only applied to email messages that the user receives (think a reply from a friend which would be sorted into the personal category versus the latest offerings of the airline you flew with in the past) but also Twitter, Facebook and everything else (not sure how this is going to be applied to RSS feeds though).

The Raindrop development team has created two design prototypes for the interface which are shown below.

Raindrop is currently not available publicly. The developers aim to release a version that can be downloaded and installed in the near future. You can read more about Raindrop at the introductory post over at the Mozilla Labs website.

The software could be useful for web users who not only receive lots of emails but participate heavily in multiple other web services and communities. What’s your take on Raindrop?