Is the SIM card alone available from Verizon? I would like a separate SIM card with my number so I can use it on my wife's Thunderbolt
I don't know how SIM cards work on Verizon, but I would think that you can't do that, if you leave your phone active. As an AT&T customer, I cannot have two active SIM cards with the same phone number at one time. I don't know if it would be different with one SIM card phone and one non-SIM card phone.
Yes you can can get a free sim card at the vzw store or have them ship you one.
But what you are saying wouldn't work, thats spoofing/cloning