#import <Foundation/NSObject.h>
+@protocol UIAccelerometerDelegate;
+
@interface UIAccelerometer : NSObject
{
double _updateInterval;
@end
+@class UIAcceleration;
+
+@protocol UIAccelerometerDelegate<NSObject>
+@optional
+- (void) accelerometer:(UIAccelerometer *)accelerometer didAccelerate:(UIAcceleration *)acceleration;
+@end
+