Okay for young kids, but poorly executed

The core game itself seems to be okay for its purpose, but the normal app parts around it are poorly done. For example, I bought the full island pack right off the bat, but all the purchase buttons stick around anyway and clutter up the interface.
Further, theres no mission abort button, so if your kid selects the wrong level, you either have to play it through or force quit the app.

So, if you Motion Math people are reading this, do two things:
1) Make ALL purchase buttons dissapear after said purchases are made.
2) Make it possible to quite a level and go back to the nest.

Ferilyn about Motion Math: Wings