The iTunes App Store offers downloads of several applications for Apple iPhone and iPod touch for free, as listed below. At up to $3 off, each is at the lowest price we've seen. The deals:

• A Knights Dawn for iPhone, iPod touch, and iPad: Action adventure game
• iReading – Alice’s Adventures for iPhone and iPod touch: Children's reading aid
• Photo Power for iPhone and iPod touch: Photo processing tool
• HappyShutter for iPhone, iPod touch, and iPad: Smile-sensitive auto-timing photo tool
• Njoy Note for iPhone and iPod touch: Note-taking tool
• 4Towers Onslaught for iPhone, iPod touch, and iPad: Tower defense game
• The Escapee for iPhone and iPod touch: Action/adventure game
• Berzerk Ball HD for iPhone, iPod touch, and iPad (pictured) : Reaction-time game