The iTunes App Store offers downloads of several applications for Apple iPhone and iPod touch for free, as listed below. At up to $4 off, each is at the lowest price we've seen. The deals:

• Pot Smash for iPhone, iPod touch, and iPad: Physics-based game
• Silent Film Director for iPhone and iPod touch (pictured): Film editing tool
• Plunderland for iPhone, iPod touch, and iPad: Action-adventure game
• Cro-Mag Rally for iPhone, iPod touch, and iPad: Racing game
• Air Media Center for iPhone, iPod touch, and iPad: Media sharing game
• DMD Panorama for iPhone or iPod touch: Panoramic photo tool