and why there are different version of the board if is still sold out and we bought the same board at the same moment :S ?
That's a good question... My Due's already arrived and I'll collect it tommorow. Now I'm really curious to see which of the versions it is...
let us know... 
All right, I'll let you know
(I don't grant you it will be tommorow though...)
It's an question too, where you bye it, from the Arduino Store or somewhere else, maybe there is an first pullout with different design or the first pullout to the other reseller is different to the first pullout buyed from the Arduino Store.
I bought it from this store http://www.ptrobotics.com . It's one of the stores in Arduino's Distributors page http://arduino.cc/en/Main/Buy .
From what I know I believe 5 Dues were dispatched to this store right after it went on sale. They arrived there sometime between thursday and friday on the release week.