Nintaii (99 cents for a limited time, available here) from Concrete Software is a new puzzle game for the iPhone and iPod Touch. As with many other puzzle games for the iPhone, Nintaii makes use of iPhone's touch screen and accelerometer controls.

The objective of the game is to tumble a rectangular block through each stage and deposit it into the square hole at the end. Switches, road blocks and arrows are located in many levels. Switches are activated by having the block stand on it.

The simple yet challenging app includes 100 levels for players to work through. No wonder the game is named nintai, which means patience, perseverance, or endurance in Japanese.

Nintaii is already very popular with BlackBerry smartphone users. It even won the Best Game of the Year award in the BlackBerry Developers Challenge.