I actually admire those cunning opportunity seekers, jtara and brownieguy19, for having the balls to try to make a buck off of AT&T. AT&T is the enemy remember?
Most likely they'll get a nice email saying their extraneous orders have been canceled.
+1. Apple will not care. AT&T will never figure it out.
And if they do send an email, you say, "I wanted to add two additional lines to my account." Phones still get to your house in time. 14 days to return them, and you are still a happy iPhone 4 owner. Like I said. Worth a shot.