The devices never really had any preconditions - so when Daniel and Vala warped over to the Ori galaxy, they conveniently ended up in white male and female bodies.
I'm not sure what you mean by that, but they ended up in that couple's bodies because that couple also possessed communication stones.
Oh, and Joe Mallozzi posted some clarifications on this whole debacle. I'm not sure how much his words are worth around these parts, but, well, here's the link:
http://josephmallozzi.wordpress.com...9-addressing-the-issues-and-a-robust-mailbag/
Come on guys, behave yourselves.
