Our engineers are so cool. Not only did they throw together RSS feeds–though by throw I mean seriously engineer–we now also have the ability to import from del.icio.us (the file produced by http://del.icio.us/api/posts/all). This is an important feature because, for now, a lot of people who could take advantage of RawSugar’s capabilities have substantial sets of tagged pages there; providing a two step import means their collections can start with all previous work reused. A big win, for sure.
Compare for yourself: I set up a clean RawSugar collection into which I imported all my del.icio.us links. Navigate through both and see the difference in your experience finding information and specific pages. You can have the same, no charge.