Sway $4.99

This game is a prime example of what iPhone games need to be: interactive. Interactivity is the big picture that the big game companies are missing. It is a very fun and easy to play game, and yet it is still very challenging. Sway has a playful look to it as well as fun music and a generally innocent feel all throughout the application. The $4.99 pricetag is a bit more than I would like, so I would recommend trying the lite version first before you go buying the full application. But be sure to at least try it.