QR-Codes

Microsoft created something similar to this but Google I think will really be pushing this into the future.

What you see above is called a QR Code, the little box with a ton of dots is like a barcode, soon you will start seeing businesses putting those on products, in store-front windows, EVERYWHERE.

Your probably thinking, okay great...now what the hell does the thing do already?

QR-Codes are like real world links to websites, basically you pull out your mobile phone, take a snapshot of the code, and bam you see a ton of information on the product, with reviews and links to the product on the businesses website.

You will need a mobile app to use this but since Google made it I'm certain the app will be free or dirt cheap.