Is it possible to display an CALayer without an UIView?
<p>As far as I can tell, I <em>need</em> an UIView (or subclass of UIView) to display an CALayer on screen, right?</p>

<p>Then, what's the point of using CALayer for saving memory? The only point I see is when I would add several sublayers to a CALayer. Then those sublayers would not get copied 3 times for all the different tree types like presentation tree, render tree and so on. Is that right?</p>
