Bowling game sample from the book Learn Unity 4 for iOS Game Development
This is not just a bowling game - it's the bowling game created in the upcoming book Learn Unity 4 for iOS Game Development (and as you can see, it works for Android, too!)
The game features HyperBowl-style controls: swipe the screen to push the ball forward, left, right, even backward! Longer swipes impart more force. Shake to bring up the pause menu.
The game is built with the Unity game engine and several free packages from the Unity Asset Store. The code is also available on github. See http://technicat.com/ for more information.