Here's a great milestone! We finally have a brand new bookmarklet which does not rely on any javascript libraries. At just 17 KB in size, it is exceptionally fast and light-weight, yet packs more features than any of our competitors. Unfortunately we had to update the bookmarklet code itself as well as the underlying script, so you will need to regenerate your bookmarklet. Please go here to do so.
Most updates to the bookmarklet can be done without you having to recreate it from the "Add Items" page. We anticipate only one more "recreation-update" in the future - the rest we can do on our end, without you needing to take any action at all.
We hope you love the new bookmarklet as much as we do. If you have any issues with it, suggestions or feature requests, please let us know in the comments.

Check out the new features:
So glad you could remove the "Look Inside" arrow. It's pretty annoying when you just want to see the cover.
The bright-orange title-bar seems harsh... maybe something a little less loud?