What if your iPhone could read barcodes? ...just like the scanners at the checkout (you know, the ones with the red laser.) You could do all sorts of cool things. Check online prices for a DVD player. Scan movies at the store and beam them to your TiVo. Scan a book and check for reviews. Scan the milk and add it to your grocery list. I know what you’re thinking. That’s impossible, right? You hear