I just bought my first Android, a Droid 2 yesterday. Am still feeling my way around it, though things are starting to make a bit more sense. I once saw a brief clip on a YouTube video of someone interacting with a touch screen Android, sliding their fingers over the screen, creating a rippling effect, like with water. Does anyone know if that was an interactive wallpaper or an app? Never mind! It was one of the wallpapers!