You will most likely have to sign a new contract. Most carriers have their customers re-sign their plans whenever they purchase/ upgrade their phones or plans. In this case, yes you would have to sign on again.
...sign up for a new plan? I have a data plan for my blackberry and Im pretty sure you need a data plan for the nexus one so I was wondering if I could just switch over phones or if I have to sign a new contract?
You will most likely have to sign a new contract. Most carriers have their customers re-sign their plans whenever they purchase/ upgrade their phones or plans. In this case, yes you would have to sign on again.
