Is the 12 month upgrade for just the primary line or for all lines?
If it is for all lines I will switch over in a heartbeat.
I'm no expert, but it looks to me like every line is on the 12 month cycle.
EDIT: Ok, don't take my word for it. Apparently the Sprint Primier 12 month cycle is only on the primary line. This could be the same thing. I'm not sure. Sorry, wish I had better info for you.
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