I've tried out two different "path" games this past week from the App Store. Both Chuck the Ball and Super Fruitfall have you navigating paths on the iPhone, both using the touchscreen a little differently to send items you don't directly control around the screen.
Super Fruitfall is made by a developer called Universomo and published by our friends at THQ Wireless. It's a relatively simple game -- there is some fruit sitting on a rotateable field, and your job is to match the fruit up with others of its type. It's amusing, in the way the old Labyrinth games were, but it's frustrating in the same way, too.
Extra frustration enters the scene when too-sensitive controls cause you to flip the screen an extra turn, losing any patterns you had going. A "juice mode" makes the game a little more interesting by keeping the fruit flowing as you match it out, but at $3, the game's a little too boring, unless you really love tilt puzzles. Personally, my outcome at the end of each level was brought about just as much by my randomly flipping the board around as it was any strategy I tried.
Chuck the Ball is a little more promising.