Well, the Vista Ultimate Extras' Windows DreamScene has been released. These are basically animated backgrounds. From the page:

In early July, I wrote about The Ultimate Team’s intention to ship the remaining promised Ultimate Extras (DreamScene and the remaining Language Packs) by the end of the summer. Unfortunately summer never really came to Seattle this year—so we missed our cue. That being said, we are pleased to announce that Windows DreamScene is now available.

What I saw on my vista ultimate system is an update that required a reboot, and then the addition of five mpgs integrated into the desktop background control panel applet.

All but one of these was released in beta ages ago. WTF? Come on microsoft, you can do better than this. I'm not the only one who thinks this way.