1. It's not "officially" out in North America either.
2. What activation servers are you talking about? All you need to do is use SecuROM to activate the game.
3. You never know. Stores are usually not supposed to "sell" the game even though they receive it from Activision/any other company. It happens to all games. They are clearly labeled to be sold at the specific date. Look at Modern Warfare 2 when it was sold early at GameSpot.
4. I'll straight yourself if you need me too.