New features! Slide shows are now tricked out with a way to view information about any of the photos in the show. Just click a photo and you will see (up and down arrow keys also work). Also, the Organizr now lets you order your sets, so you can decide which sets show up at the top of your photos page. In addition, when editing a photo in the Organizr, you can page forward and back with “next” and “previous” buttons (right and left arrow keys’ll also work).
Oh! and I almost forgot: slide shows are now linked from some other pages, like group pools, tags within pools, and new photos from your contacts.