Google is sending out decals to thousands of businesses that have a QR barcode on it. The idea is you can scan the barcode with your phone using special software and get information about the place you are about to enter, reviews and even instant coupons. If this catches on, it will be nice when walking up to a restaurant and immediately getting third party reviews to help you make a decision on whether or not to enter it.
If you go to the FAQ, you can find links to a number of different software packages that read the codes, many of which work on Windows Mobile. After all of the hype about Microsoft Tag, i never really got how it would get into the mainstream. Looks like Google figured out a way, but they used a two dimensional code over fifteen years old.
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