QR Codes: Cracking the 
(QR) Code

While these codes are ubiquitous in Asia, they're just starting to be discovered in the U.S. Awareness and use of QR codes is growing exponentially. Indeed, 32 percent of U.S. smartphone users have scanned a QR code and another 70 percent said they plan to use one again or for the first time, according to MGH's QR Code Usage and Interest Survey taken in February.