This is small live wallpaper. The grid of blurred line are slowly moving and rotating. The app is very small and doesn't requere any permissions. Also it is hightly customizable.
Usage: Home->Press Menu->Wallpapers->LiveWallpapers

The code is based on blurred-lines-live project. You can found it here: http://goo.gl/cin5T

Limitless Grid Live Wallpaper