ya i was wondering t he same thing... but i couldnt wait or keep asking everyone that called me who is this? lol.. so i entered all manually omg never doing that again... took an hour n a half to do so =(
There are no contacts stored on the SIM. They are all stored in iTunes.
I know this from personal experience. When I got a replacement iPhone and put in my old SIM into the new phone, none of my contacts showed up, even though the phone had been activated. As soon as I came home and hooked up to iTunes, the contacts showed up.
I even asked the Apple employee when none of my contacts were there, "Hey, where are all my contacts I had stored on my SIM?" And he said "There are no contacts stored on the SIM. They are all stored in iTunes."