A plea to parents purchasing iPad Apps for children:
Stop buying apps that do stuff like this.
If you see that an app has a $99 in-app berry purchase, don't download or buy it.
If you see that an app encourages children to poke and sling animals and destroy things, don't buy it.
Do a small bit of research to see if the app was designed with your child's age in mind. Buy apps from trusted sources like http://tocaboca.com/ , http://piikeastreet.com (disclosure:that's me), http://www.duckduckmoosedesign.com/ , etc.
If you buy more of the good stuff, there will be more good stuff to buy!