It's a complete rewrite, but I'm still surprised they missed so many basic features. It's rather frustrating to use.

* No iPhone version of the site anymore.

* Links are bookmarked as soon as you click the bookmarklet, not when you click save on in the popup window.

* No suggest-as-you-type tags when using the bookmarket.

* Both http://delicious.com and http://www.delicious.com exist, and you can be signed in on one but not the other. There are also links on one that redirect to the other.

* If you are logged out, clicking on the bookmarklet pulls up the site's registration screen in a new window. This window does not have horizontal scrollbars and is not wide enough to see the login link.

* For some reason there's no hand cursor on mouse-over of links.