Screensaver Flickr Photo Stream
I liked Steve Job's idea about get new photos for grandma's screensaver. I hacked together this perl script that you can run, from the directory where you store your photos, for your favorite screensaver. You can pass the script the url for your favorite rss 2.0 feeds on flickr and it will download the new photos. Tell cron or some other task manager to run it every 30 minutes and grandma will always have those latest photos.