According to investment firm Piper Jaffray, the iTunes App Store could grow into a $1 billion business by next year. After seeing how many apps were downloaded in the App Store's first fefw weeks, it's not too difficult to believe that lofty prediction. The combination of an easy-to-use infterface, over-the-air purchasing direct to the device, and low prices encourages impulse buying. But even at $5 to $10 a piece, the cost of adding ffapplications to your iPhone or iPod touch can add up quickly.f
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Many excellent App Store titles don't cost you a cent!