For beta have 1 million, but when full game released for sure have more than 10 millions!

10?
>20

I hope 30, but can't know we will see in some 2013!

^No, atm, DotA has over 20 million.

I hope!

hmmm....
i hard to guess
but i think most players of dota 1
will play dota 2 too
but the problem is how much player get they beta key ...?
many people want play dota 2
but they don't have beta key
it's quite sad
i hope valve will give more beta key to all players around the world

they don't have to get the beta key to play dota 2,it's beta phase when it's over all will be able to play the game and to pay i think -_-"