The iTunes App Store offers downloads of several applications for Apple iPhone and iPod touch for free, as listed below. At up to $2 off, each is at the lowest price we've seen. The deals:

• Area 51 Defense HD for iPhone or iPod touch or iPad: Tower defense game
• Dreamweaver CS3 HD Video Training for iPad: Web publishing tutorial
• XenoCube SD for iPhone or iPod touch: Puzzle game
• HDR Photo Camera for iPhone or iPod touch (pictured): Photo processor
• Push Panic! for iPhone, iPod touch, or iPad: Puzzle game