An icon in the shape of a lightning bolt. Impact Link While you can use your iPhone's Camera app to automatically scan QR codes by just holding the camera in front of the QR code and taping a pop-up, ...

Want to know if that CD you're about to buy is cheaper online? Point your iPhone at the bar code and in seconds this app will look up competing prices. Rick Broida is the author of numerous books and ...

Executive Editor David Carnoy has been a leading member of CNET's Reviews team since 2000. He covers the gamut of gadgets and is a notable reviewer of mobile accessories and portable audio products, ...