Many states are cracking down on the use of cell phones while driving. In fact, just across the state line where I live, using a cell phone while behind the wheel can get you stopped by the State Police and fined (no matter what you are doing with it). Wheeltunes ($0.99) aims to make at least the act of accessing your playlist or controlling your player safer with a fully gesture-based player control UI. However, it is important to note that it still likely can't protect you from a fine. You should make sure to know the cell phone driving laws in your home state or anywhere you may be traveling this summer, and follow the law. If you must drive and play with your music player, you certainly should do so with an app that has a simple, stark interface and allows you to change tracks with a swipe.