gistfile1.cs

	// Rotating with Quaternions.
	Quaternion rotation = Quaternion.LookRotation(transform.position);
	rotation *= Quaternion.Euler(0f, 90f, 0f);
	transform.rotation = 
			Quaternion.Slerp(gameObject.transform.rotation, rotation, 1f); // place holder for testing final position.
			
	// Rotating with vector 3
	transform.eulerAngles += Vector3.Slerp(gameObject.transform.position,
				gameObject.transform.position + new Vector3(0f, 90f, 0f), 1f); // place holder for testing final position