This wallpaper draws a randomly generated landscape using retro styled contour lines. There are several configuration options available in the paid version including speed, frames per second (FPS), color, and elevation. Place FPS high for performance or low to to save on battery life. To set wallpaper go to your Homescreen Menu > Wallpaper > Live Wallpapers.
To use this, your phone must support Live Wallpapers.
If you would like to change your backgrounds colors (or other configuration options), check out the full version of Retro Contours, for $.99.
Connect the path. Rotate hexagonal tiles and eliminate loose ends to solve randomly generated puzzles. Just make sure everything is connected to something! Playing is incredibly intuitive; just tap a tile and drag to rotate. Map size and tile colors are adjustable.
Curvy Free! has unlimited map sizes and advertising. If you want Curvy without ads it's only $1.50 on the Android Marketplace.