Snowman, the developer behind Circles and Checkmark, has released a new, free puzzler for iPhone and iPad called Super Squares. It's one of those fun, pick-up-and-play games that are great for killing a few minutes or unwinding at the end of the day.
Your task is to complete a path from one point to another, avoiding obstacles along the way. As you play, the game gets progressively more challenging. I've grabbed my copy and will be checking it out this weekend. Look for a full review next week.