I recently loaded a couple of barcode reader apps into my iPod Touch. It is really amazing. You find an item and use the camera to take a picture of its barcode, and it tells you the prices of that item in stores around you! Still clunky and doesn't really work, but you can see the potential. Imagine an easy MySimon.com that lets you just wave your cell phone at an item, and you can then decide whether it is worth your bother to go to another store to get it for less. The ultimate would be, since we usually buy the same things over and over again, you just scan the barcodes of things you buy often and the app will tell you what items to get on a particular day at a particular store.
http://online.wsj.com/article/SB1000...ghtMostPopular
http://online.wsj.com/article/SB1000...ghtMostPopular
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