Hi All, here is a question: A family plan has 4 lines. All lines are eligible for devices upgrade. One phone has been upgrade to iphone 4, which extended the family plan another 2yrs. Now if upgrading the remaining 3 phones to discount phones listed on AT&T as well, will the family plan be extended 6 more years? (2 yrs x 3) I have heard, many time, that some people get iPhones 4s for all lines of their family plan. Wouldn't that make their contracts to up to 10 years? (if they open 5 lines, all upgrade to iPhone 4s) If it is true, isn't that crazy? (esp. with AT&T). The reason I bring up this question is a AT&T online chat agent told me that it is true that those 2yrs extended contract for each individual line will sum up to 2-10 years. I found it unbelievable. I want to upgrade all my lines.