Create a fancy shadow^

shadow.m

/* 
	 * Create a fancy shadow around the frontView.
	 *
	 * Note: UIBezierPath needed because shadows are evil. If you don't use the path, you might not
	 * not notice a difference at first, but the keen eye will (even on an iPhone 4S) observe that 
	 * the interface rotation _WILL_ lag slightly and feel less fluid than with the path.
	 */
	UIBezierPath *shadowPath = [UIBezierPath bezierPathWithRect:self.frontView.bounds];
	self.frontView.layer.masksToBounds = NO;
	self.frontView.layer.shadowColor = [UIColor blackColor].CGColor;
	self.frontView.layer.shadowOffset = CGSizeMake(0.0f, 0.0f);
	self.frontView.layer.shadowOpacity = 1.0f;
	self.frontView.layer.shadowRadius = 2.5f;
	self.frontView.layer.shadowPath = shadowPath.CGPath;