The iTunes App Store offers downloads of several apps for Apple iPhone, iPod touch, or iPad for free, as listed below. At up to $8 off, each is the best deal we've seen. The deals:

• InstaMail Photos and Videos for iPhone, iPod touch, and iPad:: Media-sharing tool
• Mini World for iPhone, iPod touch, and iPad: Simulation tool
• Filtatron for iPhone, iPod touch, and iPad: Audio effect and studio tool
• Eighty-Eight for iPhone, iPod touch, and iPad: Puzzle game
• Stupid Zombies 2 for iPhone, iPod touch, and iPad (pictured): Action game
• Purple Cape for iPhone, iPod touch, and iPad: Puzzle game
• iEmotions GOLD for iPhone, iPod touch, and iPad: Emotional analysis tool