Regarding the additional charge to the card, they did that to me back when I had the DX. They assured me the card with get credited back once they receive the defective one. It took me over a month and numerous phone calls to get the credit back, and it was credited to my verizon account, not back to my card.
This time, they just sent out the replacement without any charges to my card or account.
They send out a brand new in the box replacement so you have to send everything back.
Does anyone know what the difference might be between 12.06 and 12.07? Unlike a previous poster, my 12.07 replacement didn't say "Updated" on the box or the screen protector. I checked About Phone in settings and everything was the same. I went through and did some comparison of things like unlocking, opening apps and app drawer, etc and they were exactly the same in speed. I also checked signal strength and was pretty much the same. The only thing I noticed that might have been different (can't be for sure) is that the 12.07 didn't seem to get as warm.