My boy Sean Combs (aka Diddy) will apparently be using QR codes to promote his new album coming in December. At about the 1:02 mark of the video he gives the plug. I'm surprised that we haven't seen more out of the music biz when it comes to pioneering mobile QR campaigns. We'll see, maybe Puff Daddy will get it right! Holler at me, Diddy, you need to be using Tappinn.