Sorry if this question has already been asked. I'm really confused and hoping someone can clarify. I heard I may lose my unlimited data if I upgrade and wanted to know my options. Both of my lines are eligible for an upgrade. Line 1: Old Blackberry Bold with unlimited data, nationwide talk fs 700, 1000 text Line 2: Iphone 4s, 2gb, nationwide talk fs 700, 250 text I want to upgrade my blackberry line and keep my plan the same. I really do not want to lose my unlimited data on line 1. Do I use my iphone 4s upgrade on line 2 then call Verizon and switch it to line 1? Or do I have to add a line 3 or pay full retail?