The live-CD kiosk edition is designed to quickly turn a computer into a web kiosk suitable for kids and guests, while protecting the contents of the internal hard drives. Access to an internal hard drive is restricted.
USB flash drives and hard drives, on the other hand, are still accessible for external storage. Content may saved on the external drive or viewed.
It's simple. There's a web browser and little else on the desktop or menu. By default, the web browser is setup to maximize privacy. All history, data, cache, etc, are deleted when the browser is closed.
There's still a full featured Precise Puppy 5.5 operating system. Limited work can still be done to files on an external USB storage device by double clicking them. View multimedia files, view PDFs, edit pictures, edit text files, etc.
The operating system does not save sessions or settings. Simply reboot it to restore it to the original state.
No installation, mininal setup (wireless connection). Just boot from the live-CD.