[rodhan]

Completely agree - Toca Boca definitely have the right approach here. In our safe YouTube for kids app, DuckyTube, we tried hard to make the children's part of the app look fun while making the grownup parts of the app (selecting videos from YouTube, sharing with friends, etc.) look more businesslike so kids are drawn to click the duck and get back to the fun part. Similarly, if there is an error or whatever that we have to interrupt the app we make the "Continue" button look most interesting so children prefer to click it.

Another bugbear of mine is children's apps that make it too difficult for parents to access the menus. One of our competitors requires you to go to the iPhone Settings page for the app, turn on the "Show Menu" option and return to the app to press the Menu button. Then when you are done you have to repeat the process to turn it off again!