title: setPreviewDisplay vs setPreviewTexture
body: <p>When opening the Android camera, either a SurfaceHolder or an OpenGL SurfaceTexture must be set to hold the displayed images, using <code>setPreviewDisplay()</code> (API level 1) or <code>setPreviewTexture()</code> (API level 11), respectively.  Is there any difference in speed, device compatibility (aside from API level), or image quality between the two?</p>