The game not-mom ('elemental') IS the current game developed by stardock and will be go in beta in first half 2009. The other one -demigod- will be only distributed by stardock.
I think they'll handle it like GC. Each one who preorder the game is automaticaly in the beta test.
I guess my sleepy wording was unclear. I was in fact saying that "Demigod" is just being produced and distributed by Stardock, and that it's not the same studio that is developing "Elemental" (which is of course a Stardock internal project, and on a timeline completely unrelated to the dev timeline for Demigod).