A few months ago I was playing with Doug McCune's Coverflow component and made a simple photo carosel to display some photos. I was going through some of my projects yesterday and when I came across the Photo Carosel I thought it would be cool to use it as My Desktop Wallpaper. I have never used a swf for wallpaper before so I googled the topic and found this cool free(for personal use) swf wallpaper tool called Flash Wallpaper from Tenmiles. Im sure I could figure out how to do it myself but this was quick and painless and took less than 5 minutes to set up and install my first Flex Wallpaper.
Below is a screenshot of it on my laptop, I also installed it on my Asus eee and it works great on both machines. 
It's nothing too fancy but I like it and so do my kids!
Now i'm wondering if there is a better way to do this with Air. If anyone has done this or can point me to some online resources that I may have missed I would greatly Appreciate it