It's true that there are a lot of games for the iPhone that are simply re-hashes of old games. There's nothing wrong with that, since many of the classic games are fun to play. But it's nice when something original comes along like Subway Shuffle.

In this puzzle game you are trying to get your subway car to its destination. The problem is that other cars are blocking your path. Each car can only move along a path that is the same color. It's a fairly simple concept, and is pretty fun to play. It also keeps track of the number of moves it took you to solve the puzzle, and tells you how many moves it should have taken you to get there. The Lite version is free and includes 10 levels. You can pay $2.99 to get the full version, which has a total of 50 levels.