Last night I tried the apple reservation but did not go through it coz it asked me to ad data. I am doing this on the line that is eligible for upgrade but is a dumb phone. Once I get the ip5 I will want AT&T to link it to my number. Can I not select the data plan? If I have to add data can I cancel after I get the upgrade swap to my number. Will I loose my unlimited grandfathered plan. I don't want them to transfer the new data plan as well we they upgrade swap.