Forgive my ignorance.
If a friend of mine has an account with Verizon on a Blackberry Bold with an active contract and they wish to upgrade their Bold to an iPhone 4S are they given a new 2 year contract for the iPhone 4S or would it be on their existing contract?
I ask this because I wanted to know if it is possible for me to pay them for the iPhone 4S after they purchase it at a contract price. They could then put their sim card back into their old phone and I could unlock the new iPhone without paying $600-$800.

If a friend of mine has an account with Verizon on a Blackberry Bold with an active contract and they wish to upgrade their Bold to an iPhone 4S are they given a new 2 year contract for the iPhone 4S or would it be on their existing contract?
I ask this because I wanted to know if it is possible for me to pay them for the iPhone 4S after they purchase it at a contract price. They could then put their sim card back into their old phone and I could unlock the new iPhone without paying $600-$800.