Here is a great example of how a technology company could use QR Codes to demonstrate their products via advertisements. While a list of benefits & features and great screenshots can still be very important, a QR Code can make it very easy for someone to watch and experience what the product could do for them via a video.
Here is a picture of a flyer that was found in the Boston Business Journal magazine:
Here is a picture of the mobile website that people were directed to:
