iPadForums.net helped me decide to start my own iPad accessory business, the BubCap home button cover. Not only do BubCaps keep toddlers in toddler apps at home, but BubCaps are used in schools and by therapists working with kids who have special needs. BubCaps are also used in conjunction with kiosk apps, and basically for anyone who needs to lock a user in an app, but doesn't want to jailbreak their iPad (or any iDevice).