@PDF: You may think that would be the case. But you can't compare a mouse operation to holding something. Two totally different sets of movements are going on. Not the least of which is the orientation of the hand. Sorry but hominids are my field of training and while what you say sounds logical it just doesn't hold true. Now if natural is being used in place of easy than I would agree, a drag and drop operation is easier to perform. However, that has nothing to do with natural, easy is not always natural. Just look out your window and think how easy it is to make a 100 mile trip driving your car as opposed to walking. That's easy, but its not natural.
