Okay, SIM is too short of a word to search for, and I couldn't find any TB threads with a SIM tag at the bottom, so don't flame the admin for a fail.
That said, I wanted to pass a little info along to you guys about our SIM cards:
When you bought your TB, they also included a SIM card. That SIM card is yours and it's attached to your line, not your phone. In fact, if you ordered online, you will notice the card was not inside the Thunderbolt packaging; it was in the box separately.
If you were to buy a second phone, for the same line, or if you did a Warranty exchange, there will not be a new SIM card in the box. They know you already have one on that line and will not send you a new one.
All you have to do is plug your existing card into the new phone and bam it works. The Verizon store employees at my local store have not been trained about this properly. They were insisting that they needed my old card back and that they would have to deactivate it and give me a new one. I knew it wasn't true, but I'm not the type to argue with someone who's just trying to do their job. But after about 10 minutes of her trying to figure out how to do the SIM card replacement and a call for help from the store manager, I asked them to please let me show that my existing card would work.
They finally agreed, and both voice and data on the new phone worked right out of the box, without them having entered a single thing into their computer. When I showed them I could browse the web, they said fine but voice will absolutely not work. Then I placed a phone call. So, this is something that would be obvious to anyone that's ever owned a GSM phone, but maybe not so much to us Verizon die hards. I seriously was very nice about it, and they remarked they were glad to learn this after having swapped cards out all week long.
It's a new technology and anyone with a Verizon mindset, including employees and customers, may still think of the way things work with CDMA. We actually laughed about it and I admitted I only knew this because I have a second Bolt (don't ask) that I had learned this on. One came with a card, the other didn't.
So if you're exchanging or plan on buying a new phone, don't be surprised if there's no SIM card in the box.