i am creating a app that manage the alpha property of image views. alpha property increase/decrease as the user moves the phone.I saw something on here about using a subclas
You can "capture" accelerometer data coming from a real device.
You can purchase iSimulate
here: http://bobueland.com/cocos2d/2011/how-to-install-isimulate/
..or
you can use a free solution: accelerometer-simulator
More about how to install or tutorial: