QR Codes Spreading to Big Time Companies – chicagotribune.com

A sampling of companies using QR codes:

Best Buy. After May test with promotional link to “Super Mario Galaxy 2video game, codes being placed on all product tags.

Delta Air Lines. Added the codes to its iPhone app to replace the paper boarding pass at check-in.

The Gap. The code takes shoppers to a Web site with information about its jeans.

via QR codes – chicagotribune.com.