in src/browser/AccelerometerProxy.js [22:33]
function listener (success) {
var accel = {};
accel.x = Math.round((Math.random() * 2 - 1) * 100) / 100;
accel.y = Math.round((Math.random() * 2 - 1) * 100) / 100;
accel.z = Math.round((Math.random() * 2 - 1) * 100) / 100;
accel.timestamp = new Date().getTime();
success(accel);
window.removeEventListener('devicemotion', listener, false);
}