In the Android Market, you can download the official Tetris game for Android from EA Mobile for about $3. But what if you can't get enough of the game? Now you can turn your wallpaper into a nonstop game of Tetris with a simple live wallpaper by XDA user jug6ernaut. While you can't interact with the wallpaper, you can watch the memorizing shapes magically fall into place and be impressed by how smart the...er...wallpaper is. Just run the APK file cited below and you'll see a new option show up in your wallpaper menu.

Source: XDA