Kc8 (http://www.kc8.co.uk/) has introduced Line Ar(X) 1.0, a game available on the Mac, iPhone and, soon, the iPad. The goal of the game is to aim, fire and get your ball to the target goal. However, the game progresses with new obstacles and challenges throughout to keep your brain ticking, according to the folks at Kc8.
Line Ar(X) has 64 levels and an original soundtrack created especially for the game. It requires Mac OS X 10.5 or higher for the Mac version and iOS 3.0 or later on the iPhone. The OS X and iOS versions are US$0.99 each.