JoDa I think Brad (aka Frogboy) slip that into one of his status reports that he does every now and then.
Since all that the folks are updatting current software/programs making sure they work with both Vista and XP and trying to get 64 bit compatibility they are just a little busy.
If if fact a dreams like function can be done they would want to make sure it wouldn't use all your resources. I'm still on XP and have gone back to using screen savers, some nice ones out there.
I really haven't been sold on the idea of a moving or aninmated backgrounds for my desktop. The way I look at it if your working with several windows open do you see it, are you paying attention to it. probably not.
If you are done working and close the windows possibly, but then if you are finished working, how many people sit in front of their computer to watch an animated desktop, Hmmm. If you left something open on your desktop, you probably wouldn't want people walking pass to see it, you would use a screen saver.
Just my thoughts on the subject.