This $15 baby-proofing iPhone/iPod Touch system works with three free busy-box style apps that work just fine, even without the device holder. Search on "laugh and learn."
First, you start the app you want your child to use. Next, you slide your device into a self-sizing holding pocket, that has a clear plastic shield on one end. So, depending on the orientation of your home button, you can either limit or grant the ability to change apps. The final step is to tighten the cover using a quarter-sized thumb screw. The easy-to-grasp handles have four colorful loops on them, and a mirror on the back, to keep things interesting, even if your screen is turned off. If you have a touch-screen loving baby, this 21st century rattle certainly seems like a great idea, unless of course you get a call from your boss.
