Use iPod touch as a level
Use your iPod touch to determine whether an object near you is level, straight, or flat (measurements are approximate).
Tap Level, then hold iPod touch against an object, such as a picture frame.
Make an object level: Rotate the object and iPod touch until you see green.
Match the slope: Tap the screen to capture the slope of the first object. Hold iPod touch against another object and rotate them until the screen turns green.
To reset the level, tap the screen again.