I'm thinking of buying this phone from EBAY, it is new unopened. I still have more thasn a year on my current contract. Will Verizon switch and activate for me? Will they Charge activation fee? I will need to upgrade my plan with the $29.99 Package to. Will it be a new 2 yr contract? Is there a difference between the "RIM" 8330 Curve and the 8330 Curve Verizon sells? The one I'm buying is a Verizon phone. What about batteries, are the batteries all the same? Thank You