I just got done talk with one of Stardocks sale reps about this same question.
I pre-ordered on Sunday night and I know that my card has not been charged and I have not received any registration information for Demigod. The reply that I got back is as follows:
Hello,
The beta for Demigod is currently closed so you will not be charged, nor have access to it, until it is reopened. At that time, you will receive information about how to obtain the game and your card will be charged. Please let me know if I can be of further assistance.
Cheers,
Emily
Stardock Sales
This seemed a little odd to me b/c in the Sins of a Solar Empire pre-order beta I purchased the game when a beta was not open and I was still able to download and play the game.
Could we get a confermation from someone on the development team?