I actually had my credit card compromised directly after an iTunes purchase (within 24hrs). They racked up $600 of online purchases I had the physical card in hand, after some detective work, found the thiefs ip was from Texas, i'm in CA, so yeah. I got a prize in the mail of a girls gone wild video. About a month later, same thing happened to my friend, including purchase from iTunes, ggw video. To us definitely iTunes related, we use gift cards only for iTunes now. However, I continue with dedicated card for other internet purchases. Just saying, yeah it does happen. Would be nice to have some prepay cards we could use for 3G service