I bought an iPhone 4 through AT&T.... Then I decided to see how Apple.com's system was doing and found that I was getting the subsidized new contract price of $199 for the 16gb. It allowed me to complete my order. I received an order confirmation Just out of curiosity, I tried it again....it worked....order confirmation received. Again out of curiosity I tried it again, this time it didn't work. So 3 iPhone 4s on 1 eligible line....how was that possible?? a glitch?