After months of hard work, I’m pleased to officially announce the new extension. It has the same two buttons as the old one, but they do so much more. The biggest change is that we now integrate all your bookmarks right in the browser. From the new sidebar you can sort and search your bookmarks instantly, view tag intersections, and even modify your bookmarks. The new toolbar is also great – you can select what tags you want to see in your toolbar, show all the bookmarks with a given tag, and even view your bundles. Of course, livemarks and keywords are both fully supported.
I would really like to see a del.icio.us plugin for Safari. The only tool that seems to be available for Safari is the del.icio.us bookmarklet.