On a previous post I mentioned using Durl in order to get an RSS feed to see any new people who bookmark a certain page in del.icio.us (ie. the del.icio.us URL page for a particular bookmark-usually link to this by clicking on “and ? others” next to each bookmark).
This is a URL page of a bookmark from one of my blog posts…at the bottom you will now see an RSS button (this displaces the immediate need of durl).
Not sure how long this has been implemented, but I just noticed it!