iViewer gives you the ability to access the in built sensors in your devices to create a 3D or 'Parallax' background effect.
This effect was recently used by Apple in iOS7.
You can load this test GUI (as shown in the video) yourself on an iPad by using the FILE URL:
cmdf.us/parallaxgui or Click here to download the demo GUI.
No license is required for this demo.
Visit our GitHub to view and download the code: https://github.com/CommandFusion/DemoUserInterfaces/tree/master/Parallax
To change the sensitivity of the effect, you can use a larger or smaller image. The larger the image, the more sensitive it is. So to make the effect more subtle, use a smaller image.